Japanese Journal of Agricultural Economics
Online ISSN : 2432-2385
  • Kohya Takahashi, Koshi Maeda
    2018 年 20 巻 p. 1-17
    発行日: 2018/03/31
    公開日: 2018/05/08
    ジャーナル フリー

    The purpose of this paper is to econometrically clarify the demand structure for beef in Japan by disaggregating beef into four classes and considering the non-stationarity of time series data, and then to consider the impact of the Trans-Pacific Partnership (TPP) Agreement on the domestic production of beef. The main analysis results are as follows. First, demand for imported meats are more elastic to own price and meat expenditure compared with demand for domestically produced meats. Second, the TPP Agreement will not significantly affect the quantities demanded for Japanese beef and hybridize type beef but will decrease the quantity demanded for dairy beef by 8.6%. Third, the situation after the TPP Agreement came into effect will be different from the situation after the beef tariffication; thus, we cannot expect a mitigation effect of trade liberalization impacts, such as compensating for the decrease in production of dairy beef by the increase in production of Japanese beef.

  • Kanjana Kwanmuang, Apinya Wangyeesen, Hisato Shuto
    2018 年 20 巻 p. 18-37
    発行日: 2018/03/31
    公開日: 2018/05/08
    ジャーナル フリー

    Our study examines farmers’ crop choice to investigate the motivation behind the recent coffee production decrease in Chumphon, a southern province of Thailand. Through a choice experiment based on a random parameter logit model, which takes into account farmers’ heterogeneous preferences for commodities, we find that the constraint on hiring labor induces farmers to refrain from replanting new coffee trees. In addition, the coffee tree aging problem induces the removal of old coffee trees, but does not affect significantly the replanting of new coffee trees when the hiring labor constraint is not imposed in the experiment. This seems to suggest that, since coffee has only one harvesting opportunity in a year, the constraint on hiring harvesting labor amplifies the income uncertainty of coffee management.

research letter