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Yujiro Hayami

Bio: Yujiro Hayami is an academic researcher from Aoyama Gakuin University. The author has contributed to research in topics: Agriculture & Agricultural productivity. The author has an hindex of 39, co-authored 125 publications receiving 8520 citations. Previous affiliations of Yujiro Hayami include Tokyo Metropolitan University & University of Minnesota.


Papers
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Book
01 Jun 1985
TL;DR: In this article, the authors proposed a method to improve the quality of the information provided by the user by using the information of the user's interaction with the service provider and the user.
Abstract: Фундаментальный учебник по теории развития сельского хозяйства как отрасли. Рассматривается развитие сектора в историческом масштабе, специфика развития отрасли в развитых и развивающихся странах (с акцентом на развитие в странах с избыточной рабочей силой). В книге представлены следующие темы: аграрная экономика и её роль в общем процессе экономического развития, структурная трансформация, стратегии и модели развития сельского хозяйства и аграрная структура, взаимосвязь сельского хозяйства и промышленности, государственная политика в области сельского хозяйства, макроэкономика и сельское хозяйство, либерализация торговли сельскохозяйственной продукцией.

2,595 citations

Journal ArticleDOI
TL;DR: In this article, the authors elaborate a theory of institutional innovation, in which changes in the demand for institutional innovation are induced by changes in relative resource endowments and by technical change.
Abstract: In this paper we elaborate a theory of institutional innovation in which changes in the demand for institutional innovation are induced by changes in relative resource endowments and by technical change. We illustrate, from agricultural history, how changes in resource endowments and technical change have induced changes in private property rights and in the development of non‐market institutions. We also consider the impact of advances in social science knowledge and of cultural endowments on the supply of institutional change. In a final section we present the elements of a model of institutional innovation that maps the relationships among resource endowments, cultural endowments, technology, and institutions.

433 citations

Journal ArticleDOI
TL;DR: In this article, the authors explored the causes of enormous agricultural productivity differences now existing among the developed and less developed countries and identified factors that determine the productivity gap, and their influences are gauged on the 1957-62 national aggregate data of 38 nations.
Abstract: This study explores the causes of enormous agricultural productivity differences now existing among the developed and less developed countries. Factors are identified that determine the productivity gap, and their influences are gauged on the 1957–62 national aggregate data of 38 nations. Aggregate production functions are estimated on the cross-country data; and, with the estimates of production elasticities, the productivity differences between India and United States and between India and Japan are accounted for by conventional inputs (labor, land, fertilizer and machinery) and nonconventional inputs (education and research). The measured contributions of respective factors to the productivity differences provide a guideline for allocating development efforts in the less developed countries.

326 citations


Cited by
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01 Jan 2002
TL;DR: This article investigated whether income inequality affects subsequent growth in a cross-country sample for 1965-90, using the models of Barro (1997), Bleaney and Nishiyama (2002) and Sachs and Warner (1997) with negative results.
Abstract: We investigate whether income inequality affects subsequent growth in a cross-country sample for 1965-90, using the models of Barro (1997), Bleaney and Nishiyama (2002) and Sachs and Warner (1997), with negative results. We then investigate the evolution of income inequality over the same period and its correlation with growth. The dominating feature is inequality convergence across countries. This convergence has been significantly faster amongst developed countries. Growth does not appear to influence the evolution of inequality over time. Outline

3,770 citations

Journal ArticleDOI
TL;DR: In this paper, the authors define social resilience as the ability of groups or communities to cope with external stresses and disturbances as a result of social, political and environmental change, and explore potential links between social resilience and ecological resilience.
Abstract: This article defines social resilience as the ability of groups or communities to cope with external stresses and disturbances as a result of social, political and environmental change. This definition highlights social resilience in relation to the concept of ecological resilience which is a characteristic of ecosystems to maintain themselves in the face of disturbance. There is a clear link between social and ecological resilience, particularly for social groups or communities that are dependent on ecological and environmental resources for their livelihoods. But it is not clear whether resilient ecosystems enable resilient communities in such situations. This article examines whether resilience is a useful characteristic for describing the social and economic situation of social groups and explores potential links between social resilience and ecological resilience. The origins of this interdisciplinary study in human ecology, ecological economics and rural sociology are reviewed, and a study of the impacts of ecological change on a resource- dependent community in contemporary coastal Vietnam in terms of the resilience of its institu- tions is outlined. I Introduction The concept of resilience is widely used in ecology but its meaning and measurement are contested. This article argues that it is important to learn from this debate and to explore social resilience, both as an analogy of how societies work, drawing on the ecological concept, and through exploring the direct relationship between the two phenomena of social and ecological resilience. Social resilience is an important component of the circumstances under which individuals and social groups adapt to environmental change. Ecological and social resilience may be linked through the dependence on ecosystems of communities and their economic activities. The question is, then, whether societies dependent on resources and ecosystems are themselves less resilient. In addition, this analysis allows consideration of whether institutions

3,732 citations

Book
01 Jan 1986
TL;DR: Innovation is defined as "the development and implementation of new ideas by people who over time engage in transactions with others within an institutional order" as mentioned in this paper, where the authors focus on four basic factors new ideas, people, transactions, and institutional context.
Abstract: Innovation is defined as the development and implementation of new ideas by people who over time engage in transactions with others within an institutional order. This definition focuses on four basic factors new ideas, people, transactions, and institutional context. An understanding of how these factors are related leads to four basic problems confronting most general managers: 1 a human problem of managing attention, 2 a process problem in managing new ideas into good currency, 3 a structural problem of managing part-whole relationships, and 4 a strategic problem of institutional leadership. This paper discusses these four basic problems and concludes by suggesting how they fit together into an overall framework to guide longitudinal study of the management of innovation.

3,513 citations

01 Jan 1999

3,389 citations

31 Jan 1982
TL;DR: This article reviewed various studies which have provided a description of and possible explanation to patterns of innovation adoption in the agricultural sector and highlighted the diversity in observed patterns among various farmers' classes as well as differences in results from different studies in different socioeconomic environments.
Abstract: This paper is a revised version of Staff Working Paper 444 It reviews various studies which have provided a description of and possible explanation to patterns of innovation adoption in the agricultural sector It therefore covers both empirical and theoretical studies The discussion highlights the diversity in observed patterns among various farmers' classes as well as differences in results from different studies in different socio-economic environments, and reviews the attempts to rationalize such findings Special attention is given to the methodologies which are commonly used in studies of innovation adoption, and suggestions for improvements of such work through the use of appropriate economometric methods are provided The diversity of experiences with different innovations in different geographical and socio-cultural environments suggest that studies of adoption patterns should provide detailed information on attributes of the institutional, social and cultural setting and their interactions with economic factors These may be an important element in explaining conflicting experiences

3,145 citations