WorldCat Identities

Zhang, Junfu

Overview
Works: 25 works in 74 publications in 3 languages and 438 library holdings
Genres: Longitudinal studies 
Roles: Author
Classifications: HD9999.B443, 338.47660609794
Publication Timeline
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Most widely held works by Junfu Zhang
The dynamics of California's biotechnology industry by Junfu Zhang( Book )

5 editions published in 2005 in English and held by 70 WorldCat member libraries worldwide

High-tech start-ups and industry dynamics in Silicon Valley by Junfu Zhang( Book )

3 editions published in 2003 in English and held by 46 WorldCat member libraries worldwide

The effects of Wal-Mart on local labor markets by David Neumark( Book )

15 editions published between 2004 and 2007 in English and held by 40 WorldCat member libraries worldwide

We estimate the effects of Wal-Mart stores on county-level employment and earnings, accounting for endogeneity of the location and timing of Wal-Mart openings that most likely biases the evidence against finding adverse effects of Wal-Mart stores. We address the endogeneity problem using a natural instrumental variable that arises from the geographic and time pattern of the opening of Wal-Mart stores, which slowly spread out from the first stores in Arkansas. In the retail sector, on average, Wal-Mart stores reduce employment by two to four percent. There is some evidence that payrolls per worker also decline, by about 3.5 percent, but this conclusion is less robust. Either way, though, retail earnings fall. Overall, there is some evidence that Wal-Mart stores increase total employment on the order of two percent, although not all of the evidence supports this conclusion. There is stronger evidence that total payrolls per person decline, by about five percent in the aggregate, implying that residents of local labor markets earn less following the opening of Wal-Mart stores. And in the South, where Wal-Mart stores are most prevalent and have been open the longest, the evidence indicates that Wal-Mart reduces retail employment, total employment, and total payrolls per person
Employment dynamics and business relocation : new evidence from the National Establishment Time Series by David Neumark( Book )

11 editions published in 2005 in English and held by 36 WorldCat member libraries worldwide

We analyze and assess new evidence on employment dynamics from a new data source, the National Establishment Time Series (NETS). The NETS offers advantages over existing data sources for studying employment dynamics, including tracking business establishment relocations that can contribute to job creation or destruction on a regional level. Our primary purpose in this paper is to assess the reliability of the NETS data along a number of dimensions, and we conclude that it is a reliable data source although not without limitations. We also illustrate the usefulness of the NETS data by reporting, for California, a full decomposition of employment change into its six constituent processes, including job creation and destruction stemming from business relocation, which has figured prominently in policy debates but on which there has been no systematic evidence
Do small businesses create more jobs? : new evidence from the National Establishment Time Series by David Neumark( Book )

11 editions published in 2008 in English and held by 35 WorldCat member libraries worldwide

We use a new database, the National Establishment Time Series (NETS), to revisit the debate about the role of small businesses in job creation. Birch (e.g., 1987) argued that small firms are the most important source of job creation in the U.S. economy, but Davis et al. (1996a) argued that this conclusion was flawed, and based on improved methods and using data for the manufacturing sector they concluded that there was no relationship between establishment size and net job creation. Using the NETS data, we examine evidence for the overall economy, as well as for different sectors. The results indicate that small establishments and small firms create more jobs, on net, although the difference is much smaller than what is suggested by Birch's methods. However, the negative relationship between establishment size and job creation is much less clear for the manufacturing sector, which may explain some of the earlier findings contradicting Birch's conclusions
Fertility differences between married and cohabiting couples a switching regression analysis by Junfu Zhang( )

3 editions published in 2007 in English and held by 17 WorldCat member libraries worldwide

The advantage of experienced start up founders in venture capital acquisition evidence from serial entrepreneurs by Junfu Zhang( )

2 editions published in 2007 in English and held by 16 WorldCat member libraries worldwide

Tipping and residential segregation a unified schelling model by Junfu Zhang( )

2 editions published in 2009 in English and held by 16 WorldCat member libraries worldwide

This paper presents a Schelling-type checkerboard model of residential segregation formulated as a spatial game. It shows that although every agent prefers to live in a mixed-race neighborhood, complete segregation is observed almost all of the time. A concept of tipping is rigorously defined, which is crucial for understanding the dynamics of segregation. Complete segregation emerges and persists in the checkerboard model precisely because tipping is less likely to occur to such residential patterns. Agent-based simulations are used to illustrate how an integrated residential area is tipped into complete segregation and why this process is irreversible. This model incorporates insights from Schelling's two classical models of segregation (the checkerboard model and the neighborhood tipping model) and puts them on a rigorous footing. It helps us better understand the persistence of residential segregation in urban America
A study of academic entrepreneurs using venture capital data by Junfu Zhang( )

2 editions published in 2007 in English and held by 16 WorldCat member libraries worldwide

Are businesses fleeing the state? : interstate business relocation and employment change in California by David Neumark( Book )

2 editions published in 2005 in English and held by 14 WorldCat member libraries worldwide

Measuring the stringency of land-use regulation the case of China's building-height limits by Jan K Brueckner( )

1 edition published in 2016 in English and held by 3 WorldCat member libraries worldwide

This paper develops a new approach for measuring the stringency of a major form of land-use regulation, building-height restrictions, and it applies the method to an extraordinary dataset of land-lease transactions from China. Our theory shows that the elasticity of land price with respect to the oor-area ratio (FAR), an indicator of the allowed building height for the parcel, is a measure of the regulation's stringency (the extent to which FAR is kept below the free-market level). Using a national sample, estimation that allows this elasticity to be city-specific shows substantial variation in the stringency of FAR regulation across Chinese cities, and additional evidence suggests that stringency depends on certain city characteristics in a predictable fashion. Single-city estimation for the large Beijing subsample, where site characteristics can be added to the regression, indicates that the stringency of FAR regulation varies with certain site characteristics, again in a predictable way (being high near the Tiananmen historical sites). Further results using a different dataset show that FAR limits in Beijing are adjusted in reponse to demand forces created by new subway stops
The preference for larger cities in China evidence from rural-urban migrants by Chunbing Xing( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

China has long aimed to restrict population growth in large cities but encourages growth in small and medium-sized cities. At the same time, various government policies favor large cities. We conjecture that larger cities in China have more urban amenities and a better quality of life. We thus predict that a typical rural-urban migrant is willing to give up some income in order to live in a larger city. We present a simple model in which rural-urban migrants choose destination cities to maximize utilities from consumption and urban amenities. Drawing data from a large-scale population survey conducted in 2005, we first estimate each migrant's expected earnings in each possible destination city using a semi-parametric method to correct for potential selection bias. We then estimate the typical migrant's preference for city population size, instrumenting population size with its lagged values to control for potential omitted-variables bias. From these estimation results, we calculate the typical migrant's willingness to pay to live in larger cities. Our results show that indeed rural-urban migrants strongly prefer cities with larger populations. We explore possible explanations for this preference and discuss the implications of these findings
Flora algarum marinarum sinicarum by Xia Bangmei( Book )

1 edition published in 1999 in Chinese and held by 1 WorldCat member library worldwide

Are ghettos good or bad? evidence from US internal migration by Junfu Zhang( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

It is difficult to determine whether ghettos are good or bad, partly because racial segregation may have some effects that are unobservable. To overcome this challenge, we present a migration choice model that allows for estimating the overall effects of racial segregation. The key idea underlying our empirical approach is that if segregation indeed has a negative overall effect, migrants should be willing to give up some earnings to avoid living in segregated cities. Using decennial census data from 1980 to 2000, we provide new evidence that ghettos are bad. It is shown that both black and white migrants prefer to live in less segregated cities. For example, for a one-percentage-point reduction in the dissimilarity index, the estimated marginal willingness to pay of blacks is $436 (in 1999 dollars) in 2000. Among whites, this marginal willingness to pay is $301
Unaffordable housing and local employment growth evidence from California municipalities by Ritashree Chakrabarti( )

2 editions published between 2013 and 2014 in English and held by 1 WorldCat member library worldwide

It is widely believed that unaffordable housing could drive businesses away and thus impede job growth. However, there is little evidence to support this view. This paper presents a simple model to clarify how housing affordability is linked to employment growth and why unaffordable housing could negatively affect employment growth. The paper then investigates this effect empirically using data on California municipalities. For various reasons, a simple correlation between unaffordable housing and employment growth cannot be interpreted as causal. Several empirical strategies are employed to identify the causal effect of unaffordable housing on employment growth. The estimation results provide consistent evidence that unaffordable housing indeed slows local employment growth. Policy implications of these findings are briefly discussed
Social-family network and self-employment : evidence from temporary rural-urban migrants in China/ Junfu Zhang; Zhong Zhao by Junfu Zhang( )

3 editions published in 2011 in English and German and held by 1 WorldCat member library worldwide

We hypothesize that individuals with a larger social-family network are more likely to choose self-employment. We test this hypothesis using data on temporary rural-urban migrants in China. The size of a migrant's social-family network is measured by the number of relatives and friends this migrant greeted during the past Spring Festival. Our empirical analysis faces two challenges. First, there is an endogeneity problem in that a migrant may want to develop and maintain a large social-family network exactly because he is self-employed. For this reason, a simple correlation between the probability of being self-employed and the size of the migrant's social-family network cannot be interpreted as causal. Second, the size of the social-family network is measured using survey data, which is subject to measurement error. To overcome these problems, we take an instrumental variable (IV) approach. More specifically, we examine the distance an individual migrated when he first moved to a city and use this variable to instrument for the current size of the social-family network. We establish the credibility of the IV by emphasizing the unique institutional context of rural-urban migration in China and focusing on the sample of migrants who originally started as wage workers in urban areas and currently are not in their first jobs. Our IV results indeed show that a rural-urban migrant with a larger social-family network is more likely to be self-employed in the city. This finding is robust to alternative model specifications and various restrictions on the sample used in estimation. -- social-family network ; self-employment ; rural-urban migrants
The effect of housing wealth on labor force participation evidence from China by Shihe Fu( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

This paper uses the 2011 China Household Finance Survey data to estimate the effect of change in housing value on homeowners' labor force participation. Using the average housing capital gains of other homes in the same community as an instrument for the housing capital gains of a given household, we find that a 100 thousand yuan increase in housing value leads to a 1.37 percentage point decrease in female homeowners' probability of participating in the labor force and a 1.49 percentage point increase in their probability of becoming housewives. We find little effect on men's labor force participation
Measuring the income-distance tradeoff for rural-urban migrants in China by Junfu Zhang( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

Rural-urban migrants in China appear to prefer nearby destination cities. To gain a better understanding of this phenomenon, we build a simple model in which migrants from rural areas choose among potential destination cities to maximize utility. The distance between a migrant's home village and destination city is explicitly included in the utility function. Using recent survey data, we first estimate an individual's expected income in each potential destination city using a semi-parametric method, controlling for potential self-selection biases. We then estimate the indirect utility function for rural- urban migrants in China based on their migration destination choices. Our baseline estimates suggest that to induce a migrant to move 10 percent further away from home, the income of this migrant has to increase by 15 percent. This elasticity varies very little with migration distance; it is slightly higher for female than male migrants; it is not affected by the migrant's age, education, or marital status. We explore possible explanations of these results and discuss their policy implications. -- income-distance tradeoff ; rural-urban migration ; hukou system ; China
Do small businesses create more jobs? : new evidence for the United States from the National Establishment Time Series( )

1 edition published in 2008 in English and held by 1 WorldCat member library worldwide

We use a new database, the National Establishment Time Series (NETS), to revisit the debate about the role of small businesses in job creation. Birch (e.g., 1987) argued that small firms are the most important source of job creation in the U.S. economy. But Davis et al. (1996a) argued that this conclusion was flawed, and based on improved methods and using data for the manufacturing sector, they concluded that there was no relationship between establishment size and net job creation. Using the NETS data, we examine evidence for the overall economy, as well as for different sectors. The results indicate that small firms and small establishments create more jobs, on net, although the difference is much smaller than what is suggested by Birch's methods. Moreover, in the recent period we study, a negative relationship between establishment size and job creation holds for both the manufacturing and services sectors. -- Job creation ; job destruction ; small businesses
Walled cities in late imperial China by Yannis Menelaos Ioannides( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

 
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Alternative Names
Junfu, Zhang 1970-

Zhang, J. 1970-

Zhang Junfu

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