摘要:

AbstractPesticide‐induced beekills cost California beekeepers almost $@@‐@@1 million in 1975. California almond growers depend on bees for crop pollination and thus lost approximately $@@‐@@200,000 from beekills during this same year. A partial equilibrium framework is employed to calculate the marginal revenue product of a bee colony to the beekeeper and the marginal value product of a bee colony employed by an almond grower. The issue of bee protection is addressed in the context of the Tulare County citrus nectary. It is found that substantial net gains in total income were realized from the establishment ofa bee protection area.

ISSN:0002-9092    

DOI:10.2307/1239682

出版商:Oxford University Press    

年代:1980

数据来源: WILEY

摘要:

AbstractA stochastic dynamic programming model was developed to estimate optimal strategies for U.S. wheat reserves policy using the results of an econometric model which reflects the complex dynamics of supply response. Empirical results indicated that U.S. producers are the beneficiaries of a wheat storage program, while domestic and foreign consumers are relatively small and large losers, respectively. Another result is that wheat storage capacity in excess of 2 billion bushels is difficult to justify economically.

ISSN:0002-9092    

DOI:10.2307/1239683

出版商:Oxford University Press    

年代:1980

数据来源: WILEY

摘要:

AbstractThis study draws upon recent theoretical contributions which have introduced uncertainty into trade theory to examine empirically the implications of international price uncertainty for agricultural comparative advantage in a small open economy assuming risk‐adverse policy makers. Utilizing a price endogenous, linear programming model developed for Senegal, it is shown that Senegal's comparative advantage in the production of peanuts and comparative disadvantage in the production of cereals is less clearcut when international price risk is considered. The results suggest a trade strategy of less specialization in peanuts and greater self‐sufficiency in cereals may be superior to free trade.

ISSN:0002-9092    

DOI:10.2307/1239684

出版商:Oxford University Press    

年代:1980

数据来源: WILEY

摘要:

AbstractOrdinary least squares, exactly restricted OLS, stochastically restricted OLS (mixed estimation), and principal components regression each were used to estimate an aggregate agricultural production function for Thailand for which data were highly multicollinear. Pretest considerations, incorporating alternative risk measures, were addressed in detail for purposes of model evaluation. The final mixed and principal components models generally outperformed OLS in terms of risk and overall reasonableness, mitigating a serious multicollinearity problem and permitting a direct examination of the rate and composition of Thai agricultural output growth.

ISSN:0002-9092    

DOI:10.2307/1239685

出版商:Oxford University Press    

年代:1980

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1239686

出版商:Oxford University Press    

年代:1980

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1239687

出版商:Oxford University Press    

年代:1980

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1239688

出版商:Oxford University Press    

年代:1980

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1239689

出版商:Oxford University Press    

年代:1980

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1239690

出版商:Oxford University Press    

年代:1980

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1239691

出版商:Oxford University Press    

年代:1980

数据来源: WILEY