摘要:

AbstractThe topics of this paper are frequently‐used, versatile research tools: subconscious mental processes (imagination and intuition), chance (including serendipity) and writing. Conditions that may stimulate subconscious mental processes to generate useful ideas are discussed. They are doubt, venturesome attitude, diversity, thorough preparation, tension, temporary abandonment, relaxation, writing, exchange with colleagues, freedom from distraction, and deadlines. Various forms of chance and their roles in research and problem solving are discussed. It is argued that writing is not only a research‐reporting tool but is also valuable in performing research.

ISSN:0002-9092    

DOI:10.2307/1239494

出版商:Oxford University Press    

年代:1979

数据来源: WILEY

摘要:

AbstractThe evidence suggests that real prices received by farmers in the LDCs have been substantially lower than farm prices in the developed nations. Estimates of a long‐run aggregate agricultural supply elasticity from cross‐section data reveal that it is relatively elastic, in the range of 1.25 to 1.66. It is estimated also that with more favorable farm prices agricultural output in a group of twenty‐seven LDCs could have been 40% to 60% greater than it was and the national income of the group increased by more than 3% annually.

ISSN:0002-9092    

DOI:10.2307/1239495

出版商:Oxford University Press    

年代:1979

数据来源: WILEY

摘要:

AbstractGovernment interventions have a pervasive impact on international grain trade, yet models of that trade treat the role of government as an exogenous influence. A model endogenizing government is presented as an alternative to spatial equilibrium trade models. That model is also used to interpret parameters in a net import demand model and to argue that the effect of international prices and production on trade often will be smaller than what is derived from domestic supply and demand equations. Econometric evidence supporting that contention is presented for trade in wheat and feed grains by thirty‐three countries.

ISSN:0002-9092    

DOI:10.2307/1239496

出版商:Oxford University Press    

年代:1979

数据来源: WILEY

摘要:

AbstractThis paper presents results of stochastic simulations of adherence to a first‐period first‐order certainty equivalence decision rule for approximately optimal wheat stocks in the United States. The decision rule is obtained by maximizing a first‐order approximation of the discounted sum of expected producers' plus consumers' surplus less storage costs over a long‐time horizon. For comparative purposes, stochastic simulations of the present system for holding stocks are also given in the paper. Stock levels under the present system were found to be higher than the certainty equivalence stock levels.

ISSN:0002-9092    

DOI:10.2307/1239497

出版商:Oxford University Press    

年代:1979

数据来源: WILEY

摘要:

AbstractThe contention that cattle are held as a store of wealth in Swaziland is supported by a regression analysis of slaughter against price and rainfall, and by an examination of the Swazi herd structure. The failure to recognize that cattle directly satisfy both wealth and income motives in traditional societies has led to the implementation of production‐oriented livestock development programs, which may worsen the serious overgrazing problem in Swaziland. Observations elsewhere indicate that there are lessons to be learned for livestock development in other overgrazed parts of eastern and southern Africa.

ISSN:0002-9092    

DOI:10.2307/1239498

出版商:Oxford University Press    

年代:1979

数据来源: WILEY

摘要:

AbstractIn this paper we have a two‐season model of agricultural production in a peasant economy, with labor unemployment in the lean season, land rationing at a conventionally fixed crop share by a monopolistic landlord who is also the financier of consumption credit for the sharecropper families. We then work out hypotheses about the relation of the equilibrium percentage of area under tenancy with land quality factors, labor‐intensity of crops, extent of unemployment, interest rates, weather uncertainty, etc. Most of the hypotheses are confirmed by interstate cross‐section evidence from India in early 1950s.

ISSN:0002-9092    

DOI:10.2307/1239499

出版商:Oxford University Press    

年代:1979

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1239500

出版商:Oxford University Press    

年代:1979

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1239501

出版商:Oxford University Press    

年代:1979

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1239502

出版商:Oxford University Press    

年代:1979

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1239503

出版商:Oxford University Press    

年代:1979

数据来源: WILEY