Do inter-city differences in intra-city wage differentials have any interesting implications?

Recent research has related characteristics of cities to differences in the distribution of wages across workers with different skill levels. We demonstrate that these differences in wage differentials arise naturally as a compensating variation in Rosen’s theoretical model of inter-city wages. For example, if the income elasticity of demand for housing services is less than unity, cities with higher house prices will have smaller money wage differentials between low and high skill workers. This result has no implications for differences in either absolute or relative real productivity or welfare of unskilled workers. Similarly, changes in the amenity of an urban area may result in changes in relative wages of skilled and unskilled workers with no implications for real productivity or welfare differentials.Empirical tests in which housing cost differentials are added as a determinant of inter-city differences in an intra-urban wage differential model provide empirical confirmation of the theoretical expectations. It appears that intra-urban money wage differentials, differences in the quality of life, and variation in the cost of living in each city are jointly determined variables just as Rosen’s model of inter-city wage differentials predicts.     

Do inter-city differences in intra-city wage differentials have any interesting implications?

Recent research has related characteristics of cities to differences in the distribution of wages across workers with different skill levels. We demonstrate that these differences in wage differentials arise naturally as a compensating variation in Rosen’s theoretical model of inter-city wages. For example, if the income elasticity of demand for housing services is less than unity, cities with higher house prices will have smaller money wage differentials between low and high skill workers. This result has no implications for differences in either absolute or relative real productivity or welfare of unskilled workers. Similarly, changes in the amenity of an urban area may result in changes in relative wages of skilled and unskilled workers with no implications for real productivity or welfare differentials.Empirical tests in which housing cost differentials are added as a determinant of inter-city differences in an intra-urban wage differential model provide empirical confirmation of the theoretical expectations. It appears that intra-urban money wage differentials, differences in the quality of life, and variation in the cost of living in each city are jointly determined variables just as Rosen’s model of inter-city wage differentials predicts.     

Black-White Economic Participation in Large U.S. Cities: Some Determinants of Their Differentials

Abstract . In this study some of the causes of the differentials in Black-White economic participation in large U.S. cities are examined. Specific concern is with unemployment and withdrawal from the labor force. The underlying hypothesis is that these differentials are a response to compositional differences between the two populations. The effects of region, economic structure, and segregation are also examined. A causal model is explicated in which these variables are inter related and their direct and indirect effects upon the dependent variables analyzed. The data suggest that, while having similar patterns of causes, labor force withdrawal and unemployment differentials are distinct phenomena. It also appears that a major portion of the variance in these variables is not accounted for by compositional differences between Blacks and Whites on socio-economic variables. However, educational and occupational differentiation have theoretically significant effects. It is argued that a major portion of the residual variance is due to discrimination, although there is no way of directly testing this hypothesis. An important negative finding is the apparently minor impact of residential segregation, suggesting that the physical isolation of Blacks is not a key factor in their limited economic participation. Finally, the data suggest that it is meaningful to regard assimilation as a multidimensional phenomenon whose dimensions are causally interrelated.     

Ethnicity and Economic Opportunity

In this analysis, data from the 1970 Census of Population are used to determine whether ethnic discrimination has been an important factor contributing to differential economic performance among immigrant groups. The measures of economic performance employed in this investigation are mean family income and the extent of poverty among cohorts of immigrants. Stepwise multiple regression analysis is used to select among possible influences on these measures of economic performance. Dummy variables are defined in a manner that allows the impact of discrimination on economic performance to be measured directly. The results of this analysis support the hypothesis that discrimination against particular groups has been a major contributing factor to differential economic performance among groups. As a consequence, we are led to reject the competing explanation of differential economic performance advanced by some analysts that differentials in economic performance merely reflect skill differentials among groups.     

Wage differentials in the presence of unobserved worker,firm, and match heterogeneity

We consider the problem of estimating and decomposing wage differentials in the presence of unobserved worker, firm, and match heterogeneity. Controlling for these unobservables corrects omitted variable bias in previous studies. It also allows us to measure the contribution of unmeasured characteristics of workers, firms, and worker-firm matches to observed wage differentials. An application to linked employer-employee data shows that decompositions of inter-industry earnings differentials and the male-female differential are misleading when unobserved heterogeneity is ignored.     

The credibility of the Colombian exchange rate target zone: Its impact over the volatility of interest rate differentials

This paper analyzes the credibility of Colombia’s exchange rate target zone, and in particular its impact on the volatility of interest rate differentials. Bertola and Caballeros’ (1995) model of a target zone with imperfect credibility is used to derive the impact of a reduction in credibility over the variance of the interest rate differential. It is theoretically shown, that as credibility decreases the variance of the interest rate differential increases. This theoretical argument is used to estimate credibility in Colombia’s exchange rate target zone. Using a SWARCH model, the probability of being in a regime with high interest rate volatility is estimated, and is related with events in the exchange rate market. Results suggest that there is evidence of lack of credibility even before the recent international financial turmoil was triggered.     

Carry-trades on the yen and the Swiss franc: are they different?

Using monthly data from 1986 to 2009 for 11 major currencies against the U.S. dollar (USD), we find that interest rate differentials between nine of these currencies are generally positive (sample mean of 0.86%) but are strongly negative for Japan (mean of ?2.78%) and for Switzerland (mean of ?2.22%). Investigating empirical models of nominal exchange rate changes we find for all panels that about 2% of real exchange rate misalignments are corrected in the following month. We also find important differences across samples and for the two carry-trade currencies the key results are as follows. First, interest rate differentials have a negative impact on exchange rates: higher paying currencies should appreciate, contrary to the ex-ante uncovered interest rate parity (UIP) condition. We find that this result is very robust to money supply (M1) differentials serving as instrumental variables to inflation rates. In addition, these two currencies depreciate slightly when money supply (M1) differentials increase. Second, dummy variables for periods of market turmoil suggest a particularly strong appreciation of these currencies against the USD, consistent with the unwinding of carry-trade activities.     

A search interpretation of the family gap

This paper proposes a general equilibrium search model to investigate what is known as the family gap: wage differentials between mothers and non-mothers. In the human capital literature a substantial amount of the family gap is left unexplained after controlling for schooling and experience. This paper suggests that differences in labor market behavior between mothers and non-mothers are an important factor in explaining the family gap. For college graduates, estimation results show that employed mothers search 70% less than non-mothers and more than 50% of the family gap can be explained by the labor market behavior differences between mothers and non-mothers. Such differences, however, can not explain the family gap for high school graduates.     

Wage determination in the union and nonunion sectors.

This study contains estimates of wage equations for white male union and nonunion employees. The authors find that nonunion wages are generally more responsive than union wages to individuals' education and experience and to regional price-level variation. Despite those differences, however, estimates of union-nonunion wage differentials based on these separate equations do not differ greatly from a differential obtained from a union dummy variable in an equation based on combined union and nonunion observations. Union-nonunion differentials vary widely across occupational groups and are generally larger in the lower skilled and more highly unionized occupations. The results for manufacturing, for which additional industry data are available, indicate a negative impact of high concentration ratios on the wages of all workers and a greater impact of establishment size on nonunion than on union wages. Data were drawn from the May 1973 Current Population Survey.     

Union Coverage Differentials. Some Estimates for Britain Using the New Earnings Survey Panel Dataset

This paper reports individual-level estimates of union/non-union wage differentials, using coverage information from the New Earnings Survey Panel Dataset. There are no existing panel estimates for the United Kingdom. Of a number of findings, the more important are (i) fixed-effects estimates are about one-half the equivalent cross-section estimates; (ii) the biggest differentials are for ‘company/district/local only’ agreements; and (iii) the differential is counter-cyclical. Also the effect of the 1979/82 recession was probably dampened by anti-union legislation, and the upward trend between 1975 and 1995 is due to the decentralization of collective pay bargaining.     

Regional Wage Gaps,Education and Informality in an Emerging Country: The Case of Colombia

This paper uses Colombian micro-data to analyze the role of education and informality in regional wage differentials. The hypothesis is that apart from differences in the endowment of human capital, regional heterogeneity in the incidence of informality is another important source of regional wage inequality in emerging countries. This is confirmed by the evidence from Colombia, which also reveals remarkable spatial heterogeneity in the wage return to individuals’ characteristics. Regional heterogeneity in returns to education is especially intense in the upper part of the wage distribution. In turn, heterogeneity in the informal pay penalty is more relevant at the bottom.     

Inter‐industry Wage Differences and Individual Heterogeneity*

Two well‐established findings are apparent in the analyses of individual wage determination: cross‐section wage equations can account for less than half of the variance in earnings and there are large and persistent inter‐industry wage differentials. We explore these two empirical regularities using longitudinal data from the British Household Panel Survey (BHPS). We show that around 90% of the variation in earnings can be explained by observed and unobserved individual characteristics. However, small – but statistically significant – industry wage premia do remain, and there is also a role for a rich set of job and workplace controls.     

UNION WAGE DIFFERENTIALS IN AN ERA OF DECLINING UNIONIZATION†

ABSTRACT This paper examines the change in union wage differentials in Britain between 1984 and 1990, a period of considerable legislative change and marked decline in unionization. Small falls in union differentials are found for manual workers, together with a sharp decline in the premium associated with, and incidence of, the pre-entry closed shop. The decline in the average differentials is found to be largely due to the inability of unions to establish differentials in new establishments. No link is found between the differential and the probability of closure and no evidence of decline in raw differentials in a matched panel.     

Migration in late working age and early retirement

The publication of population forecasts for small areas has highlighted the primitive basis for their migration components, while a recent growth of interest in the migration of elderly people has revealed pronounced differentials by age, sex and marital status. The paper presents a detailed examination of these differentials from United States and British census sources. It shows that improved forecasts of the volume of internal migration are produced by combining age specific participation rates with population forecasts for single or quinquennial years of age. Different series, based on different elderly cohorts, diverge in their forecasts by as much as 20%. Illustrative forecasts are presented and some implications for migration theory are discussed.     

The Spatial Effects of Wage or Property Tax Differentials, and Local Government Choice between Tax Instruments

This paper considers the spatial effects (on wages, employment, and business capital as functions of location) of a localized differential in source-based wage tax rates or business property tax rates between (for example) a central city and the surrounding suburbs. A simple model is used in which business production uses only labor and capital inputs. Consumers have fixed residential locations but may commute to work. Wage and property tax differentials have effects that are similar in some ways but different in other ways. If given a choice, a local government would choose to set its business property tax rate equal to zero and use only a wage tax.     

Estimating a tournament model of intra-firm wage differentials

We consider the estimation of a tournament model with moral hazard (based on Rosen (1986), AER)) when only aggregate data on intra-firm employment levels and salaries are available. Equilibrium restrictions of the model allow us to recover parameters of interest, including equilibrium effort levels in each hierarchical stage of the firm. We illustrate our estimation procedures using data from major retail chains in the US. We find that only a fraction of the wage differential directly compensates workers for higher effort levels, implying that a large portion of the differentials arises to maintain incentives at lower rungs of the retailers.     

THE TRANSPORT SECTOR AND REGIONAL PRICE DIFFERENTIALS: A SPATIAL CGE MODEL FOR CHINESE PROVINCES

With regression formulas replaced by equilibrium conditions, a spatial CGE (Computable General Equilibrium) model can substantially reduce data requirements. Detailed regional analyses are thus possible in countries where only limited regional statistics are available. Alhough regional price differentials play important roles in multiregional settings, transport does not receive much attention in existing models. This paper formulates a spatial CGE model that explicitly considers the transport sector and FOB/CIF prices. After describing the model, the performance of our model is evaluated by comparing the benchmark equilibrium for China with a survey-based interregional I-O table for 1987. The structure of Chinese economies is summarized using information obtained from the benchmark equilibrium computation. This includes regional and sectoral production distributions and price differentials. The equilibrium for 1997 facilitates discussion of changes in regional economic structures that China has experienced in the decade.     

保障性住房能促进流动人口城市融入吗?

基于原国家卫生计生委2014流动人口动态监测数据,本文探讨了保障性住房对流动人口城市融入的影响效应。结果显示:保障性住房与流动人口城市融入显著正相关,其估计系数要高于社会租房,但略低于自购住房,而采用"定居意愿"替换结果变量后的结论仍稳健;保障性住房对流动人口的经济融入、社会融入、文化融入具有显著正效应,但对心理融入的正效应并不显著;Oaxaca-Blinder分解表明,城-城和乡-城流动人口融入差异主要是由其经济社会特征差异引起的,但户籍制度及其形成的制度约束等不可解释因素仍有较大影响,而住房是城-城和乡-城流动人口的城市融入差异形成的重要因素。     

Wage curve, unemployment duration and compensating differentials

In this study unemployment effects on individual pay are investigated following the study on ‘wage curves’ by Blanchflower and Oswald (1990). In bargaining models, higher unemployment should lower wage pressure; due to compensating wage differential arguments, on the other hand, workers who take jobs with higher layoff risks should be rewarded. In a cross-sectional study on Austrian data, a negative wage curve is confirmed. Contrary to the results by Blanchflower and Oswald no U-shape is found, also long-term unemployment seems to be important. No conclusive evidence of compensating differentials has been determined.     

Regional development and sources of superior performance across textile and IT sectors in Taiwan

The rapid growth and industrialization of Taiwan's textile and IT sectors, mainly comprised of small and medium-sized enterprises, has prompted an array of explanations among academics, including neoliberalism, structural-institutionalism, flying geese patterns, regional networks and economic geography. Drawing on neoliberal, structural-institutional, regional networking and economic geographic views in that strong Taiwanese entrepreneurial culture is important to its textile and IT sector development, this study shares their positive perspectives in influencing the sources of profitability differentials among Taiwan's textile and IT firms in international competitiveness. Researchers investigating the sources of performance differences among firms have focused mainly on the relative importance of industry and firm factors. Specifically, this study employs Taiwan's business database to examine industry and firm effects on profitability differentials in these sectors using return on assets and the economic performance measures of economic value added and market value added. A variance components model is proposed, and findings indicate that firm effects dominate performance while industry effects have little impact. Our discussion reconciles results with those of previous studies.