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11.
Different viewpoints were expressed at the 1990 annual national conference of the South African Society for Agricultural Extension regarding the role of extension in the development of the farmer as entrepreneur. It is expected that public funding will increasingly be limited to functions of general public interest. To achieve independence farmers should be willing to expose themselves to entrepreneur development stimuli. it is in the public interest to develop scarce human, economic and natural resources. Research findings indicate distinct behavioral differences between entrepreneurs of differing perceptions. A comprehensive interdisciplinary education is recommended for agriculturalists. Because needs change, education programmes must be re‐evaluated from time to time. It serves little purpose to educate people in extension who do not have a technical message to communicate. The state extension service seeks closer cooperation and liaison with agricultural co‐operative and private sector know‐how. Departmental policy will probably be less rigid in future.

A clear distinction should be made between information and extension services. The adoption of an ethical code for extensionists may be opportune. Relevancy is an important contributing factor to extensionist credibility.  相似文献   

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Simulated annealing: An introduction   总被引:1,自引:0,他引:1  
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Summary The paper studies the degree of homogeneity of innovative behavior in order to determine empirically an industry classification of Dutch manufacturing that can be used for policy purposes. Defining homogeneity in terms of an economic model distinguishes our classification from existing taxonomies such as those of the OECD, Pavitt and the various classifications based on a principal components analysis. We use a two-limit tobit model with sample selection, which explains the decisions by business enterprises to innovate and the impact these decisions have on the share of innovative sales. The model is estimated for eleven industries based on the Dutch Standard Industrial Classification (SBI 1993). A likelihood ratio (LR) test is then performed to test for equality of the parameters across industries. We find that Dutch manufacturing consists of three groups of industries in terms of innovative behavior, a high-tech group, a low-tech group and the industry of wood. The same pattern shows up in the three Dutch Community Innovation Surveys. The empirical part of this study has been carried out at the Centre for Research of Economic Microdata at Statistics Netherlands. The authors wish to thank Statistics Netherlands, and in particular Bert Diederen, for helping us in accessing and using the Micronoom data set. The views expressed in this paper are solely those of the authors. The authors also wish to thank Fran?ois Laisney, Patrick Waelbroek and participants at presentations in Maastricht, Strasbourg, Leuven and Lille for their helpful comments. The first author acknowledges financial support from METEOR.  相似文献   
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In this paper, we analyze the diffusion and adoption of paper making machinery in the Indonesian pulp and paper industry, from 1923 till 2000. We develop a machine level index of technological sophistication (mach), which measures the technological distance of each paper machine to the world technological frontier. The data reveal a pattern of rapid technological catch up. But catch up was not an industrywide phenomenon. Some modern firms installed state-of-the-art machinery, while others installed older vintages. The paper argues that industrial policy has played an important role in the speed and nature of diffusion of paper making machinery.  相似文献   
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“请注册为‘D.E.Koninck'的直升机的主人到咨询台前来好吗?”在首届富世生活比利时峰荟举办地科特赖克展览中心的现场.喇叭里传来这样紧急但礼貌的询问。原来,展览中心的停车场停满了兰博基尼,宾利等名车,但一位直升机的主人不慌不忙地将其两人位的飞机停在了车辆旁边。显然.这位主人宁可被罚也一心想要参加世界顶级奢侈品盛会,毫无疑问,他是对的。  相似文献   
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Anne van der Veen  Gerard Evers 《Socio》1983,17(5-6):239-250
Simultaneous relations between various components of the regional supply of labor and the situation on the regional labor market are developed. There is a distinction between migration, participation and commuting. Conventional research only devotes attention towards the partial relation between one of these components and the regional labor market situation. However, many decisions people make, involve a simultaneous approach towards participation, commuting and migration. This approach is operationalized at a macro-level by constructing a simultaneous supply model. For the specifications we go back to standard literature. In each of the equations, apart from variables that are specific for the particular function, special attention is given to the interrelation between the three supply variables. An overall simultaneity is described by a fourth endogenous variable: unemployment; this variable is explained by employment, participation, netmigration and netcommuting. A combined time-series/cross-section-analysis is used to estimate the model.

Surprisingly it appears that in comparison with OLS parameter- and t-values of the supply-equations are not affected by the use of simultaneous estimation techniques. Only for the unemployment-equation there are significant changes.  相似文献   

20.
We study behavior in the race game with the aim of assessing whether teams can create synergies. The race game has the advantage that the optimal strategy depends neither on beliefs about other players nor on distributional or efficiency concerns. Our results reveal that teams not only outperform individuals but that they can also beat the “truth-wins” benchmark. In particular, varying the length of the race game we find that the team advantage increases with the complexity of the game.  相似文献   
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