John H. Dunning (1927–2009)

Abstract

The evolution of institutional arrangements in Chinese agriculture is looked at through the twin concepts of necessity and purpose. Nested agency relations are examined from the state planning apparatus down through levels of village officials and individual households. The emerging diversity of institutional arrangements must be understood as logical outcomes of the pragmatic evaluation of material and institutional conditions in the Chinese countryside. This diversity shows up in the domain of property regimes in land, and in the organization of production on the land.     

. Defazio,郭俊Dept. of N

Dr.VaLidity of Family History Data on Primary Adult-Onset DystoniaMartino D./Aniello M.S./Masi G. et al. [Dr. G. Defazio,Dept. of Neurol. and Psychiat. Sci., University of Bari,Piazza Giulio Cesare 11, 1-70124 Bari, Italy]Background: To our knowledge, no study has assessed thevalidity of family hist ory data provided     

Small U.S. dairy farms: can they compete?

The U.S. dairy industry is undergoing rapid structural change, evolving from a structure including many small farmers in the Upper Midwest and Northeast to one that includes very large farms in new production regions. Small farms are struggling to retain competitiveness via improved management and low‐input systems. Using data from USDA's Agricultural Resource Management Survey, we determine the extent of U.S. conventional and pasture‐based milk production during 2003–2007, and estimate net returns, scale efficiency, and technical efficiency associated with the systems across different operation sizes. We compare the financial performance of small conventional and pasture‐based producers with one another and with large‐scale producers. A stochastic production frontier is used to analyze performance over the period for conventional and pasture technologies identified using a binomial logit model. Large conventional farms generally outperformed smaller farms using most economic measures—technical efficiency, various profitability measures, and returns to scale.     

徐坦:词,交换,分析与无效

<正>概说2009年8月,徐坦开始了对中瑞合资企业"科云"的考察。于11月23日至26日,在"科云"里对其工作人员进行一对一的采访。徐坦从整理的采访记录里,根据使用频率、重要性等方面找出他认为的"科云关键词"。从对