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Hiroyuki Masuda
Session ID: 1B1-1
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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The purpose of this research is to grasp the urban characteristics of Tama New Town, to design and manage a disaster resistant community according to its characteristics. In this presentation, we report that the results of implementing "resident questionnaire on disaster prevention consciousness" to the residents around Tama University based on the concept of RAG (Resilience Assessment Grid) used in Resilience Engineering.
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Masami Honda, Kunihiko Nakano
Session ID: 1B1-2
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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Article 2 of the Local Autonomy Law stipulates that the roles of prefectures governments is to handle administrative affairs that are handled in accordance with local affairs and laws, especially, that covers a wide area of administrative affairs, concerning the coordinating of municipalities among administrative affairs, and administrative affairs that deemed inappropriate for general municipalities to deal with the size or nature of the affairs. In connection with this article, prefectures also provide information to municipalities and support various initiatives. This study conducts case studies on the involvement of municipalities by prefectures. Specifically, paying attention to open data policy, we survey the actual situation of involvement in municipalities by prefectures from the questionnaire survey conducted to prefectures.
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Yoshito Matsudaira
Session ID: 1B1-3
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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In this study, we will focus upon support policy for small and medium enterprises by municipalities, among which small and medium enterprises will consider measuring the effectiveness of support policies towards new business. From the pilot survey for SMEs certified in the Osaka City Osaka Top Runner Project, firstly, to clarify the importance of soft business support to promote new business of SMEs. Secondly, we propose a framework to capture the effect of support policy by market orientation and information resources on two axes. Finally, we construct a causal hypothesis about the measurement of the effectiveness of innovation promotion policies by local governments.
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Self-oriented type vs Relation-oriented type
Dai Senoo, Masaaki Hirano, Mikako Ogawa, Atsuko Saito, Makoto Ohashi, ...
Session ID: 1B2-1
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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The "well-being engineering" project investigates the methods to manage well-being at the workplace through a series of research, experiments, and analyses, to improve the happiness and the productivity. In this research project, we classified subjects into two types, self-oriented type and relation-oriented type using the survey data. Self-oriented type tends to feel good things singly, and Relation-oriented type tends to have happiness experience happiness experience with other persons. In the presentation, we will present the result of the comparison analysis between these two types, and discuss how gratitude effect on the degree of well-being.
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An Analysis Using Sensitivity to Happiness
Makoto Ohashi, Masaaki Hirano, Dai Senoo, Mikako Ogawa, Atsuko Saito, ...
Session ID: 1B2-2
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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The "well-being engineering" project investigates the methods to manage well-being at the workplace through a series of research, experiments, and analyses, to improve the happiness and the productivity. We count the daily average number of "what I felt good today", and the whole sample is divided into two groups in term of happiness inclination (strong or weak). In the presentation, we will show the distribution of happiness inclination within the organization and examine how “expressing gratitude" effect on the degree of well-being by happiness inclination.
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Masaaki Hirano, Dai Senoo, Masato Oohashi, Mikako Ogawa, Atsuko Saito, ...
Session ID: 1B2-3
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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The "well-being engineering" project investigates the methods to manage well-being at the workplace through a series of research, experiments, and analyses, to improve the happiness and the productivity. ?This project adopts the experience sampling method, counting the total number of "what I felt good today" written by individuals, when measuring the degree of well-being. Also, in order to measure gratitude behaviors in the community, we developed copy sticky notes type "thanks card". In the presentation, we will examine the relationship between the expressed gratitude and the happiness traits of the subjects.
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Masaaki Hirano
Session ID: 1B2-4
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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Productivity of scientific researches has drawn attention from policy science, economics, management, philosophy of science, etc, and various models have been proposed with independent variables such as policy and institution, funds, scientists, research process, etc. On the other hand, it has been established that the organisational capabilities affects its performance in business management. Organisational capabilities of research institutions, however, has not been studied extensively. The study anallyses the interview notes with Directors/Associate Dens of Research at major research institutes, both in Japan and France, to build a model of the impact of indirect organisation.
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Shinji Watanabe
Session ID: 1C1-1
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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The government intends to promote "cashless" with "promotion of FinTech" as a new growth strategy field. It has been found that the promotion of cashless from the analysis targeting a part of Europe has a positive contribution to economic growth rate over the long term (Tee and Ong [2016]).The purpose of this research is to analyze by using the method of time series analysis how the promotion of cashless conversion affects economic activity. In the existing research, it is analyzed using only countries where cashless is not advanced sufficiently. In this research, we analyze whether there is a stable causal relationship between cashless and economic activities by including countries where cashless progress has been made in the analysis country.
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Tetsuya Uchiki, Bo Xu
Session ID: 1C1-2
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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Generally the popular smart phone games are considered to rank as a higher sales ranking in the world so that Pokemon GO is symbolic. The download ranking, however, differs greatly in the West and Asian nations, and also the ranking differs greatly in Japan, China, and South Korea. Although Pokemon GO still keeps the higher rank in Europe and America, the ranking has been dropped from the higher rank in Japan and South Korea. In this paper, the relation between the characteristics of cultural environment and the feature of the popular game in the West and Asia based on the comparative analysis of the game ranking in Japan, China, and the U.S is discussed.
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Takami Iwai
Session ID: 1C1-3
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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The purpose of this study is to examine the relationship with one day internship and occupational career readiness,career exploration in among university students.The questionnaire survey data are collected from university senior sutudents.
The analysis results clarified the following two points.Firstly,
we clarify the relationship between the experienced student of one day internship and goal of job search results.Secondly,we clarify the relationship between number of one day internship and career exploration.In addition,we cleared that the relationship with one day internship and occupational career readiness,career exploration in among university students.From these results,we suggest need for career support for university senior sutudents.
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Nobuo Andoh
Session ID: 1C2-1
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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New business models that exploit the characteristics of information goods are rapidly growing worldwide, such as Google, Apple, Facebook, and Amazon. Although the importance of "information goods" as production factors has been pointed out as a cause of this, despite not distinguishing information goods from production of medium substance goods, "information goods" It seems to be due to the fact that almost cost-revenue model considering features such as non-rivalness is hardly observed. Therefore, in this paper, we define ICP(Information Creative Product) that produces information goods and the mass production method found in conventional manufacturing industry as ITP(Information Transcribing Product) consider the model analysis.
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Hiroshi Hatakama
Session ID: 1C2-2
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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Business model canvas is used worldwide for understanding and designing business models. However, systematic simulation approach to analyze or construct business models is rarely proposed yet.
Sometimes, business model success in one country can not be replicated in another country. We would like to explore the reason and the causal relationship of each element in business model canvas.
We think that the general systematic model describing business model should be AI-based, because the relationship between each element in business model is very complicated.
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Ken Takeda, Yoshiki Nakamura, Koji Osaki, Shintaro Hosoya
Session ID: 1C2-3
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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Food delivery market is expanding due to advancement of society of women, coming of an aging society, etc. Food delivery is a business characterized by quick response delivery. Especially, since the peak times of orders overlap, control of demand and delivery ability greatly affects revenue. In this research, we consider the delivery model for leveling demand and improving delivery efficiency in the quick response delivery business. Specifically, we present a framework of a "hybrid type logistics" model incorporating "pull type" delivering according to orders and "push type" of route delivery.
Finally, we indicate it is necessary both logistics data and marketing data to realize it.
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Hidenobu Sai
Session ID: 1C2-4
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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"Restaurant information service" which provides restaurant information through the Internet such as "Tabelog" and "Gurunavi" is a newer service appeared in the late 1990s and it became a major source for restaurant selection now. In response to this situation, traditional media are taking various countermeasures.
In this research, recent trends of these competitions will be examined through case study of "Lunch Passport", which was started as a countermeasure by traditional media.
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Mitsuru Ishii
Session ID: 1D1-1
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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It is well known that network externality plays an important role in the growth of many Web services such as SNS. In this kind of market, it has been said that service providing firms must keep initial investment for a while until the market grows.
We studied the growth curve under network externality based on the Ising model. In particular, we investigated the relation between the phase transition and the startup of a service. It was found that the growth curve loses nonlinearity if the system is close to the phase transition but the system still maintains many features of network externality such as the fixed share in the market.
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Through the case of AGL project led by Toyota
Kazuhiko Kato
Session ID: 1D1-2
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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In some industries, complementary products in the upper layer will induce weakening and commoditization for many platform products (PFs) adjacent to lower layer. On the other hand, phenomena such as strengthening dominance of PF products adjacent to the upper layer can be observed. The automobile industry is a typical example.The purpose of this paper is to focus on AGL: Automotive Grade Linux which is a community type project of automotive OS that Toyota promotes recently. Regarding the effectiveness and issues of this project, the paper presents practical implications while referring to past similar community type projects.
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Using Data from a Questionnaire Survey Covering Japanese Companies
Hiroki Ishibashi
Session ID: 1D1-3
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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The aim of this study is to reveal the trends and disincentives of data utilization in enterprises. In the society where digitalization progresses more and more, utilizing Artificial Intelligence(AI), IoT(Internet of Things)and Robotics will become even more important.
As various IT solutions are beginning to spread through manufacturing and service industries, the digitization of business processes is accelerated.
However, due to several factors to interfere their activities, especially small-to-medium-sized enterprises can be caught in “Trough of Disillusionment". To test this hypothesis, I first performed questionnaire surveys in 2015, 2016 and 2018, proving the trend of digitalization like data utilization by enterprises.
Second, I executed attitude surveys of their outcomes.
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Comparison among engineer, business planner and creator on eight stages of the creative process
Yoko Takeda
Session ID: 1D2-1
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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This research explores which mode of thinking (e.g., verbalization, internal image representation, perspective-taking of others) is used, and improve the performance (e.g., cooperate achievement, novelty, users' reputation) among engineer, business planner and creator collected by the online questionnaire survey (n=800) on eight stages of the creative process (Sawyer, 2012). As the result, we found the large difference among the thinking modes of each occupation and stage of the creative process. The modes that the respondents of each occupation on each stage do not use often improve the performance significantly. For example, the engineers who take user-perspective improve the performance, although they rarely do it in the reality.
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Masanobu Sunakawa, Yanwen Dong
Session ID: 1D2-2
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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Palatability is a comprehensive evaluation of various sensations such as sight, touch, taste, smell. Among them, visual acuity plays a special role. “Sight gives birth to the first taste." However, there are few researches up to now that have paid attention to palatability of food. In this study, we intend to build a palatability model based on outward appearance impression of box-lunches. Applying this palatability model, we will investigate what is the difference in the impression that make much feeling of palatability when the feeling target is Japanese-style or Western-style box-lunches. We also analysis the process that color gives a meaningful influence to this impression.
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Youyung Hyun, Ryuichi Hosoya, Taro Kamioka
Session ID: 1D2-3
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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Organizational leaders want their businesses to run on data-driven decisions by deploying big data analytics (BDA); however, many firms are facing obstacles to widespread BDA because of data silos, the rigid separation of data across divisions. To overcome data silos and capture the full potential of big data, it is necessary to create a corporate culture that encourages communication and sharing of data across departments. To our knowledge, BDA literature has not investigated a suitable corporate culture in big data context. Hence, this study attempts to empirically identify the impact of an appropriate corporate culture on BDA deployment by introducing BDA orientation which potentially facilitates data flow across divisions and values business decisions based on insights gained from BDA.
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Koji Nishiguchi, Hiroyuki Morita
Session ID: 1D2-4
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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In retail and service industries, it is strategically important to identify a customer segment whose lifetime value (LTV) is higher, and to continue trading with them. However, it is not so easy because it is difficult to identify factors that are important to continue trading. In this study, we identify a customer segment that has higher LTV using ID-POS data of a hair salon chain, and find the factors to continue trading with them using a classification approach. We propose an ensemble algorithm consisting of multiple stages using several white box classification algorithms. From computational experiments using the data, we show that our results outperform our previous results.
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Case Study of Company B and Comparative Analysis of Active State Sustaining Factors
Jun Yamaguchi
Session ID: 1E1-1
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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Effectively sustaining Kaizen activities is a major focus in business, but not enough suggestions have been made as to the type of management this requires. Case studies have been conducted to analyze changes in the active state of Kaizen, and these have shown which factors affect sustaining of an active state (active state sustaining factors).
This study focuses on the Kaizen activities of Company B, a precision instrument manufacturer. Here, Kaizen activities were sustained over 10 years and achieved significant results. The study also incorporates a comparative analysis between the factors that gave impetus to Company B's Kaizen activities and the active state sustaining factors discussed in prior research. In addition, it elucidates the attributes of Company B's management in sustaining Kaizen activities.
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From the viewpoint of business model and platform governance
Hiroshi Takahashi
Session ID: 1E1-2
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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Hundreds of vendors are entering the IoT platform market with the lively progression of IoT in recent years. In the background, the concept of the platform attracted attention, and the business in the AI era has infiltrated the recognition that the platform ecosystem construction is the basis. However, in this effort, it is necessary to review the business model beyond the traditional corporate-centered viewpoint and respond to the change dynamism. In particular, various trade-off conditions occur, so that platform governance to achieve key conditions is required in addition to utilization of the latest technology and appropriate business model combination. This paper studies the precedent case based on this recognition and discusses future efforts.
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Case Studies of Kyushu University Professor Chihiro Adachi and Kyulux
Yukihiko Nakata
Session ID: 1E1-3
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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Organic EL appeared as a disruptive technology invading liquid crystal display. Currently, Korean LG display and Samsung Electronics are leading the world organic EL display business. Is there a possibility of revival for Japan? One possibility is a third generation organic EL material (TADF: Thermally Activated Delayed Fluorescence) developed by Professor Adachi, Kyushu University. TADF's research were adopted by FIRST of the Cabinet Office and ERATO of JST. As results, potential of cost reduction, high brightness and emission spectral design are shown. As an exit strategy, venture Kyulux was founded. t Apple announced adoption of organic EL and the situation has changed. Japanese VC, Samsung and LG also invested. The collaborations have established to promote practical use, and the results are expected.
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- From the Viewpoint of IT Outsourcing -
Hitoshi Tsundoa
Session ID: 1E2-1
Published: 2018
Released on J-STAGE: December 25, 2018
CONFERENCE PROCEEDINGS
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In recent years, the environmental change of the IT department of enterprises etc is intense, and the role demanded by the IT department is rapidly changing. Based on the above background, I would like to discuss the functions, roles, organizations etc. of the IT department from several viewpoints with "research on the future IT department" as the research theme. In this field, there are many research presentations on IT outsourcing abroad. Research on outsourcing some functions of IT department to IT vendors. Issues are diverse, with the objectives of IT outsourcing, decision making, risks, contractual relations, etc. Also, as new forms such as BPO, ASP and cloud appear, scope of study is also increasing. This paper reports on literature survey on IT outsourcing.
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Osam Sato
Session ID: 1E2-2
Published: 2018
Released on J-STAGE: December 25, 2018
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Decision Sciences Institute (DSI) is a prestigious academic society that was firstly held as American Institute for the Decision Sciences (renamed Decision Sciences Institute in 1986) in 1969. The society has published academic journal “Decision Sciences (DS)" since 1970. DS has published management sciences (MS), operation managements (OM) and information systems (IS) among others. Because of the long history, DS has published many important academic articles in these areas. However, because of the wide area being covered, no keyword research of the journal has published yet. This study reports the result of keyword analysis that author conducted. The result shows longitudinal trend of keywords that papers in DSJ employed by disciplines.
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Masamichi Mukai, Akinori Yokota, Toru Yarimizu
Session ID: 1E2-3
Published: 2018
Released on J-STAGE: December 25, 2018
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The enterprise information systems have been complicating, because many information technologies are developed and improved constantly. These situations make it difficult to evaluate the effectiveness, that is, the success or failure of investment in information systems in many companies. This study classifies the definition of the success of the information system development projects through the review of literatures on the effectiveness of information systems. In addition, we analyze the risk factors in the information system development projects. Finally, this study designs the evaluation framework between the effectiveness and the risk on the information system development projects.
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Makio Fukuda, Hiroshi Yoshikawa, Hideo Kudo
Session ID: 1E2-4
Published: 2018
Released on J-STAGE: December 25, 2018
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In the computer industry, especially in the software industry, the system to be manufactured abroad is still mid-popular except for major companies. For this reason, the software is mostly manufactured in Japan, the cost of domestic labor is higher than in emerging countries, so the cost competitiveness is left low, manufacturing and markets are limited in Japan From the situation that the world is going globalizing, a bright future will not be visible.
In this research, we think that improvement of software development education in universities is necessary especially to improve this situation and to advance the globalization of ICT industry which is Japan's specialty field, the content of that education And practice.
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Koji Nishiguchi
Session ID: 1F1-1
Published: 2018
Released on J-STAGE: December 25, 2018
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Information and Communication Technology (ICT) has evolved day by day, and large companies incorporate into their business such technology in consideration of cost-benefit. Leading companies in each industry can get technical information preferentially from vendors. However, even if it is a large company, it is difficult to get the fresh information quickly when they are not intimate with the vendor or when the rank in the industry is low. Besides it seems to be difficult for small and medium-sized enterprises (SMEs) to get these information timely. In today's business environment, the ICT utilization is essential so that SMEs survive. I consider what roles are necessary to solve this existing problem between large enterprises and SMEs.
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Daigo Kobayashi, Kaori Mikuni, Masamichi Mukai
Session ID: 1F1-2
Published: 2018
Released on J-STAGE: December 25, 2018
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In recent years, artificial intelligence(AI) is booming because of the advent of deep learning and this causes rapid expansion for AI system development needs. Handy frameworks for AI development are actively developed mainly on open-source and the number of them are increasing. On the other hand, a holistic platform for AI development is still immature. There is no standard functionality for AI platform. In this paper, we introduce "KAMONOHASHI" which our company develops and explain what kind of functionality for the AI development and AI platform is needed.
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Use asching data as time series data
Sayaka Matsumoto
Session ID: 1F2-1
Published: 2018
Released on J-STAGE: December 25, 2018
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The Internet advertising expenditure in Japan exceeds 1 trillion yen, and it is indispensable in marketing. Among them, "brand advertisement" like TV commercials has increased due to expansion of advertisement usage for branding purpose (= video advertisement and premium advertisement). While the internet advertisement can be optimized in real time during the campaign period watching the trend of evaluation indicators, they couldn't have been made use of it since the evaluation index of "brand advertisement" that can be measured only by survey research can't be measured in real time. Based on these backgrounds, we developed a research service that can measure the evaluation index of "brand advertisement" at near real time. In this paper, we introduce examples of services.
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Atom Sonoda
Session ID: 1F2-2
Published: 2018
Released on J-STAGE: December 25, 2018
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Fashion e-commerce has grown and the number of e-commerce web sites are increasing, and the efforts for sellers to display have increased, which leads to the development of automatic tagging system. In this paper, we present an automatic generating description system for fashion e-commerce. There are some difficulties to generate a description for a fashion item because we should consider the color and the atmosphere as well as the shape of items. We develop visual search system using various features like color histogram, then generate descriptions for fashion items.
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Case of President Tai who revived Sharp participating from Hon Hai
Yukihiko Nakata
Session ID: 1F2-3
Published: 2018
Released on J-STAGE: December 25, 2018
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Sharp was strong in LCD but was in debt excess and asked for investment by Hon Hai. Mr. J.W. Tai, Deputy Governor of Hon Hai, assumed Sharp President in August 2016. The fiscal year 2017 settlement accounts became surplus. What was the required factors for Sharp`s survival? One is the leadership of president J.W. Tai. I interviewed him at the request from him. I also got a "president's message". Analyzing these primary information, the source of his leadership is to respect the founder Tokuji Hayakawa and establish “Shared Values" such as "Sincerity and Creativity" with employees by fostering "Credibility". I found that the required key factor is Mr. Tai`s Hon Hai-style “Japanese Leadership."
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Kohei Yamaguchi, Kazuhiro Yamaguchi, Kaori Kimura
Session ID: 1F2-4
Published: 2018
Released on J-STAGE: December 25, 2018
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Data driven marketing and management are taking place as usual.
In addition to the first party data that can be collected and used by the company, there are third party data collected by organizations not related to enterprises for companies such as SNS.
In this paper, we point out the problems seen from the management risk of third party data and introduce the way of data utilization thinking mainly about first user party data which our company can freely use.
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Marika Tezuka, Masahito Kitamura
Session ID: 1P1-1
Published: 2018
Released on J-STAGE: December 25, 2018
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In recent years, Convolution Neural Network (CNN) is mainly used for image processing and evaluated with high accuracy. The purpose of this research is to propose a method to extract and recognize accurate character areas from character strings including special fonts and various scene images. Therefore, in addition to MNIST which is an existing data set, an image data set including a special font was created. Character recognition by CNN was made, and the accuracy of the both datasets was compared. After checking characters with errors, and adding learning data for accuracy improvement to the above data set, accuracy improvement was confirmed.
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Yutaro Ishimaru, Hiroyuki Morita
Session ID: 1P1-10
Published: 2018
Released on J-STAGE: December 25, 2018
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Analysis of ID-POS data has been used to support decision making such as sales promotion and product arrangement. However, it is difficult to grasp extent of customer's interest about products that were not purchased, and to identify that it is planned purchase or not. So we need to use in-store customer journey data to reveal that. In this paper, we propose an in-store journey simulation model, and carry out the simulation using actual in-store customer journey data acquired by using the Bluetooth beacons. From several computational experiments, we show that our model reproduces in-store customer journey, and evaluate our model from the view point of difference between our results and actual data.
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An analysis using a multi-agent model
Ryo Hamaguchi, Morihiko Iinuma, Akitsu Oe, Naoki Shiba
Session ID: 1P1-12
Published: 2018
Released on J-STAGE: December 25, 2018
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The game application market has grown rapidly with the spread of smartphones. Main sources of income for game applications are users' payment and online advertising. In this study, we focus on the former, which has been said to be difficult to predict earnings. We create a multi-agent model including players' behavior and their interactions to clarify the mechanism of revenue in the game application market. Considering that the difference in play-style affects payment behavior, we assume 4 types of players in this model. As a result of simulations, it is observed that a decrease in non-paying players triggers the payment of paying players, and an increase in non-paying players suppresses the payment of paying players.
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Hayato Uekusa, Morihiko Iinuma, Naoki Shiba, Akitsu Oe
Session ID: 1P1-13
Published: 2018
Released on J-STAGE: December 25, 2018
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Japanese movies employ a production committee system to avoid risk and secure funding. This research regards that each film is an invention, high profitable movies are innovations, and the production committee is a professional community for film innovation. This research demonstrates the effect of the position in the professional community network on the overseas performance of Japanese movie. In the analysis, we employ network analysis and multivariable analysis using Japanese movie data from 2010 to 2012. The results demonstrate that the production committee that has the connection with another group in the network promotes the high oversea performance of the movie.
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Megumi Kazama, Masahito Kitamura
Session ID: 1P1-14
Published: 2018
Released on J-STAGE: December 25, 2018
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Conventional consumption functions are obtained by solving the condition that the Cobb-Douglas utility function is maximized under the budget constraint equation. Nakazawa (2014) constructed a model in which the consumption in the utility function is replaced by its ratio or difference to the reference point. This paper draws, using numerical calculation software, the surface of the utility function with two reference points, which were constructed in Kazama and Kitamura (2018) and cannot be algebraically solved, and confirms its prospect-theoretical properties. Also, for cases with one and two reference points, time variations of optimum consumption in two persons and two goods are numerically calculated. By comparing the two cases, we clarify the features of the utility function with two reference points.
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Shuto Yamazaki, Masayuki Endo
Session ID: 1P1-15
Published: 2018
Released on J-STAGE: December 25, 2018
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In the United States, the face-to-face financial adviser was hard to entry, and non-face-to-face and low-cost asset management business model called Robo-Advisers was developed for investors other than wealthy people.
Meanwhile, in Japan, investment counseling was conducted free of charge at financial institutions, and the service of Robo-Advisers is mainly targeting 20s to 40s who don't have time to go to financial institutions, but because the investment amount is small, the service growth is moderate.
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Kota Tanizawa, Sanetake Nagayoshi
Session ID: 1P1-16
Published: 2018
Released on J-STAGE: December 25, 2018
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In Hamamatsu, people have conventionally had a spirit called “Yaramaika" to execute their ideas. Having the spirit, a lot of entrepreneurs have started business in the area. The purpose of this research is to find features of the regional entrepreneurship in the area, employing the Global Entrepreneurship Monitor (GEM). We conduct a survey on entrepreneurial mind in the area and analyze the collected data. And, we compare the survey result in this area with the one in other areas. This paper quickly deduces the characteristics of the entrepreneurial mind in the area through discussion on the survey result in July 2018.
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Taishi Kikuchi, Yoshikazu Watanabe, Kenichi Minamino, Yusuke Goto
Session ID: 1P1-17
Published: 2018
Released on J-STAGE: December 25, 2018
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Recently, the importance of sleeping habits is pointed out as we live healthily with both mind and body. However, Japanese sleeping habits have a short sleeping time and bedtime is slow. Especially as sleep gradually declines after entering school, it tends to become irregular, which has a problem that it adversely affects student life. Generally, young people often evaluate optimistically for sleeping, so we suppose that it is important for subsequent university life to acquire correct knowledge about sleep quality and to promote sleep habit at early time of admission. In this research, we propose a feedback system which strengthens habitual sleeping with the aim of transitioning from indifference stage to interesting stage in behavior change stage model.
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Masashi Shida, Yoshikazu Watanabe, Kenichi Minamino, Yusuke Goto
Session ID: 1P1-18
Published: 2018
Released on J-STAGE: December 25, 2018
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Recently, the word "athlete first" is used in various events. However, it is difficult to implement a true “athlete first" which athletes wish in a swimming competition. Because, the organization side decide all program. Therefore, in this research, we focused on the waiting time between competition events that directly linked to the results in swimming record. For the swimming competition which college students manage the competitions every year, we consider the method of leveling the waiting time of each player and support making the event program based on the optimization of the competition order.
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How their strategic roles intentions influence on their investment network?
Geulhee Min, Nobuko Nishiwaki, Akitsu Oe
Session ID: 1P1-19
Published: 2018
Released on J-STAGE: December 25, 2018
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Globalization of market and production promote investments in overseas locations. In case of Japanese auto-related industries, joint capital investments are selected. This study demonstrates the influence of overseas locations' strategic roles in their investment network positions. First, we create the investment network between investment firms and overseas locations. Second, we conduct a multivariate analysis using indexes of network positions, the financial data of investment firms, and the purpose of investments. The analysis reveals that the influence of overseas locations' strategic roles in investment network positions has both positive and negative effects. The findings give us deep insights on how important it is for auto-related manufacturing companies to set up intelligent investment portfolio for their foreign advance.
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Misuzu Hasegawa, Masayuki Endo
Session ID: 1P1-2
Published: 2018
Released on J-STAGE: December 25, 2018
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In our country, the mineral water market size is 299 billion yen in 2016, which continues to expand. As seller of mineral water in Japan, it is diversified with flavored water, domestic products such as Alkaline ionized water, imported products such as Crystal Geyser. In this report, we will compare and analyze merchantability and sales strategies of representative products, and analyze consumer preferences. Then we will consider potential for expansion and issues of mineral water market.
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Mina Uratsuji, Masahito Kitamura, Tatsuya Aida
Session ID: 1P1-20
Published: 2018
Released on J-STAGE: December 25, 2018
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Sharp, which fell into a serious business crisis, received a proposal for support from Hon Hai Precision Industry of Taiwan and the Innovation Network Corporation of Japan. In March 2016, Sharp finally decided to receive Hon Hai support and Hon Hai took over Sharp. During the acquisition negotiations, Hon Hai pressed Sharp's main bank for waiver of additional credits. In this paper, the above situation is modeled using a framework called the Graph Model for Conflict Resolution (GMCR). Equilibria based on the four solution concepts of Nash stability, general meta-rationality, symmetric meta-rationality, sequential stability are obtained by calculation program. We compare the obtained equilibria with the result of reality and examine it.
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Hikari Haga, Shoichi Morimoto
Session ID: 1P1-21
Published: 2018
Released on J-STAGE: December 25, 2018
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Fashion is a social phenomenon which revolves around imitation and diffusion and applies to all domains of social life, though most of the research is on garments. In the information society, an enterprise has to adopt the trait and mechanism of such fashion itself and its spread into marketing strategy. Thus, we have discussed a marketing methodology for trendsetting in the information age based on consumer behavior, social psychology, informatics, infosocionomics, and media studies.
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Long Li, Chunhui Xu, Masakazu Ando
Session ID: 1P1-22
Published: 2018
Released on J-STAGE: December 25, 2018
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Because the market risk of an investment depends on its risk factors, the assumption about the behavior of risk factors affects the market risk measurement. It is generally assumed that the profit rate of a risk factor follows the normal distribution, but it is also well known that this assumption is not supported by the facts in the past in many cases. How to find an assumption about the distribution of an risk factor which fit pass factors is an important issue for the estimation of market risk. This study will propose a method to find such a distribution by using the g-h distribution, and estimate the market risk of an investment using the distribution obtained.
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Yudai Tomioka, Eiichi Umehara
Session ID: 1P1-23
Published: 2018
Released on J-STAGE: December 25, 2018
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According to the Ministry of Education, Culture, Sports, Science and Technology, in 2015 the number of public libraries providing e-book to users is 16% in Japan. It is only 54 municipal libraries. In public libraries, the spread of e-books is sluggish. Even in the Yokohama campus library of Tokyo City University, there are still 200 e-books and it cannot be said that they are popular. Therefore, using the Yokohama Campus Library as a case, we analyze the factors of the gap between e-books and the library's business model using DEMO.
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Genki Nakamura, Kei Suzuki, Noritomo Ouchi
Session ID: 1P1-24
Published: 2018
Released on J-STAGE: December 25, 2018
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The success of Mercari, a flea market app, has attracted a substantial amount of attention. Flea market application is a kind of platform business where network effects work. In markets with network effects, there is a first mover advantage since a service acquiring high market share develops its competitive advantage. However, Mercari overtook the first mover, and has achieved overwhelming market share. This study attempts to clarify the Mercari's success factors by comparatively analyzing text data of user review among representative flea market apps. We provide new suggestions for platform providers to diffuse their services.
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