| In dual-economic-structured countries like China, rural labor's migration to the urban is the key to develop economy, to promote the rational allocation of resources, to narrow the income gap between urban and rural and to solve three agricultural problems. Therefore, research on labor mobility (transfer) has been one of the main topics of China's economic.Most existing research on labor mobility use the theory of the dual economy and urbanization for Reference. But most studies have overlooked a problem that the statistics of China's urbanization rate is not the labor force transfer, but the increasing number of peasant workers in China's present household registration system. In the unique process of urbanization in China, peasant workers are neither in urban residents'acceptance and recognition, nor in most government policy considerations, which makes them completely the "marginal". More seriously, as originally unreasonable "peasant workers" gradually turned out to be reasonable,"second and third generation of peasant workers " concept has also appeared justifiably, even in some government documents."Peasant workers" haven't really achieve the identity conversion to urban resident, and are in the separation status of work and residence, which lead this group to an long-term unstable flow state and "labor shortage". The flow of peasant workers group reflects in two aspects, inter-regional (including between urban and rural) flow, and labor flow between jobs. This paper analyze job mobility proceeding from the labor flow between jobs, and try to explore into the reason of peasant workers frequent job mobility, as well as the negative impact on economic development.Chapter I talks from the hot issues "peasant worker shortage", then analyze of the status of peasant workers job mobility on the basis of the relevant literature.Chapter II does economic analysis by constructing a model of "peasant workers" employment mobility, and then investigates the source of frequent job mobility. The most important point of the model analysis is to add the "expected work duration" variable.Chapter III expands the model in Chapter II. Besides, some related issues are also discussed deeply, including "the new generation of peasant workers" problem and the source of peasant workers' strong job mobility.Chapter IV analyze the negative impact of peasant workers extra-strong job mobility on the basis of micro-level, individuals and enterprises.Chapter V analyze the negative impact of peasant workers extra-strong job mobility from the view of regions on the basis of the microscopic analysis.Chapter VI is the conclusion and the further research directions.This paper tries to prove that peasant workers extra-strong job mobility is not just a simple economic problem, but is mainly due to institutional factors. The problem is exactly an example of deformity balance under institutional restriction. Peasant workers extra-strong job mobility will inevitably result to unreasonable allocation of resources, and thus adversely affect the economy. Similar institutional problems arise not just in China, even in China, the problem is not just the performance of household registration discrimination in this paper. For developing countries, institutional change has highlighted impact on economic development by changing the social infrastructure and changing the long-term path of economic development finally. Institutional change would mean a reform to China. Therefore, the key to guide further development of, the developing countries including China is as follows, the inner link mechanism between social infrastructure and economic and social development, the most suitable kind of social infrastructure for economic development, the adjustment in order to promote workers equal opportunity and avoid economic distortions, which will also be the future direction of the author's further research. |