巻号一覧
49 巻 (2013)
- 4 号 p. 501-
- 3 号 p. 461-
- 2 号 p. 231-
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49 巻, 4 号
選択された号の論文の7件中1～7を表示しています
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論文
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―空間計量経済モデルの適用による知見―國光 洋二2014 年 49 巻 4 号 p. 501-510
発行日: 2014年
公開日: 2015/10/17
ジャーナル フリーTo continue Japanese rice production under strong pressure from trade liberalization, it is important to improve rice total factor productivity (TFP). This study quantified Japanese rice TFP by the Törnqvist-Thile index and Malmquist index and estimated chronological trends of rice TFP by applying a spatial econometric model with consideration of spatial interaction. The regional convergence criterion, β convergence, and the absolute convergence criterion, σ convergence, were taken into account to reveal the trends. The results demonstrated that statistical testing power became weak in the β convergence model, if spatial interaction effects were ignored. This is probably due to the regionally synchronized effects of climate change. Second, there were some periods which show different trends between Törnqvist-Thile index and Malmquist index as well as β convergence and σ convergence criteria. Third, most indexes suggested that Japanese rice TFP converged among 38 prefectures during the 1990s, but that the convergence trend stopped in the 2000s. Based on these findings, policy support needs to be reconsidered to allow less productive regions to catch up to highly productive ones.抄録全体を表示PDF形式でダウンロード (1222K)
個別報告論文
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奥田 郁夫2014 年 49 巻 4 号 p. 513-518
発行日: 2014年
公開日: 2015/10/17
ジャーナル フリーThis study details the reduction in the timber production of Southeast Alaska in the 2000s and the future outlook of timber production in the region. The study includes both national and private forest lands.
The following four points were clarified in this paper:
1. In Tongass National Forest, timber production was reduced from 146 million board feet (MMBF) in 1999 to 36 MMBF in 2010 (it was 471 MMBF in 1990).
2. In Sealaska Corporation forest lands, timber production was reduced from 106 MMBF in 1999 to 70 MMBF in 2010. Thus, in both national and private forest lands, timber production was reduced sharply in this 10-year period.
3. The Forest Service (Alaska Region) is undertaking the Forest Stewardship Program to partner with private forest land owners (which are mostly Alaskan native people).
4. Both the Forest Service and Sealaska are committed to future sustainable forest management utilizing second-growth forest. However, the market for second-growth timber is not currently well-defined.抄録全体を表示PDF形式でダウンロード (836K) -
住本 雅洋, 草苅 仁2014 年 49 巻 4 号 p. 519-523
発行日: 2014年
公開日: 2015/10/17
ジャーナル フリーThe income support direct payment program, which was introduced in FY 2010, mitigates the reduction of rice farmers’ income caused by the recent downward trending price of rice. However, rice farmers participating in the program need to give up a part of their income from the rice production adjustment. Therefore, the net benefit of the participation in the program has been defined as the difference between the subsidy and the opportunity cost of the rice production adjustment. The objective of this study is to estimate the net benefit by size class of rice acreage for FYs 2010 and 2011. The results show that the program is more profitable for the middle-size class (3.0–5.0 ha) than for the largest class (5.0 ha and over) farms, implying that the program deters expansion of rice farm size.抄録全体を表示PDF形式でダウンロード (770K) -
草処 基, 加賀美 思帆, 仙田 徹志2014 年 49 巻 4 号 p. 524-529
発行日: 2014年
公開日: 2015/10/17
ジャーナル フリーThis study investigates the determinants of cocoon prices under trade contracts that prevailed during the inter-war period in Japan between silk-reeling companies and cocoon farmer cooperatives (Tokuyaku Torihiki). The contract documents show that the process of cocoon price agreements incentivized the cooperative and its member farmers to improve cocoon quality and to reduce the risk of cocoon prices. However, the results of the estimated price determinants did not support these predictions. Competition with other forms of trade and between companies that adopted the trade contract might have weakened these functions of the trade contract.抄録全体を表示PDF形式でダウンロード (888K) -
ヴォンサナ コサダ2014 年 49 巻 4 号 p. 530-535
発行日: 2014年
公開日: 2015/10/17
ジャーナル フリー池は小さな貯水設備であり，農家は雨季には雨水を貯め乾季には灌漑を補う．ラオスでは広く貯水のために池が用いられてきたが，近年農家によって農場に個人利用の池を造る事が増え，政府はその投資効果に関心を寄せている．本稿では，2012年にラオス南部の2県で行った池の調査に基づき，大・中・小に分類された池の経済性を調べた．池を造るコストと池から得られる農家への利益を比較し，池の費用便益分析を行った．ネットプレゼントバリュー（NPV）で，将来，池から生じる価値とコストの割引現在価値の合計を比較した．すべての池が正のNPVを持ち，便益費用比率で1以上であった．家族労働の帰属費用まで含めると，小・中の池で投資が正当化された．この地方では，小・中の池が大きな池に比べてより多くの経済的所得をもたらす．大きな池はコミュニティレベルで経済的に見合うものの，貧しい農家にとってその投資は厳しい制約となっている．抄録全体を表示PDF形式でダウンロード (703K) -
―ザンベジア州グルエ郡の事例分析より―山田 隆一, 大矢 徹治, アマンシオ ニャントゥンボ, カサモ スミラ, 小林 慎太郎2014 年 49 巻 4 号 p. 536-541
発行日: 2014年
公開日: 2015/10/17
ジャーナル フリーThis study focuses on soybean, which has recently become an important cash crop in Mozambique as the primary ingredient in feed for the chicken industry. We examined the current situation of rural areas where soybean production is very popular, and two hamlets were selected as study sites. An economic investigation of farms was conducted in 2012 and 2013, and the results indicated the characteristics of the farm households that grew soybean. Then, we identified the differences of performance in soybean production between large-scale and small-scale farm households, such as yield, gross income, tractor services, and labor employment. In addition, some constraints of soybean production and marketing were indicated, and the differences among these constraints between the two hamlets were clarified.抄録全体を表示PDF形式でダウンロード (845K) -
―伊豆沼農産の事例を中心に―石塚 哉史2014 年 49 巻 4 号 p. 542-547
発行日: 2014年
公開日: 2015/10/17
ジャーナル フリーThis study analyzes the current state of pork exports by agricultural production corporations and related issues by reviewing the case of Izunuma nousan.
The data used in the study are based on the results of fieldwork conducted among various agricultural production corporations in Miyagi province, Japan.
The findings are as follows:
(1) Japanese pork continued to be exported despite infectious disease, a strong yen, and severe situations.
(2) The differentiation strategy of Japanese pork has permeated by focusing on the wealthy in Hong Kong.
(3) Although the earthquake and subsequent nuclear power plant accident temporarily suspended exports to Hong Kong, exports have recovered.抄録全体を表示PDF形式でダウンロード (1162K)
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