THE HECKSCHER-OHLIN THEOREM WITH ENDOGENOUS LABOUR SUPPLY*

This note demonstrates that the Heckscher-Ohlin Theorem, stated in terms of factor endowment ratios, is valid independent of the slope of the labour supply curve.     

TRADE AND WAGE INEQUALITY: THE HONG KONG CASE

Abstract. This paper examines the effects of Hong Kong–mainland China trade on the wage inequality in Hong Kong. Because of the large volume of trade and the large income disparity between these two regions, this empirical study provides a good test of the theories on North–South trade. The econometric analyses show that the relative wage between the skilled and unskilled workers in Hong Kong increased as the share of the volume of Hong Kong's trade with mainland China in Hong Kong's total trade volume rose.     

THE LABOUR SUPPLY AND SAVINGS EFFECTS OF SUPERANNUATION TAX CHANGES*

This paper investigates the effects on labour supply, consumption and savings of a change in the superannuation tax structure, involving the taxation of contributions to a fund, pre‐retirement earnings of the fund, and the benefits received from the fund during retirement. The effects on lifetime plans of tax changes are investigated using a simple three‐period model in which the final period is retirement. The effects of unanticipated changes, requiring revisions to plans, are examined. Although the partial effects of particular tax changes are unambiguous, the effects of allowing for a government budget constraint mean that it is difficult to predict a priori how labour supply is likely to be affected. However, private savings unambiguously fall.     

WAGE VOLATILITY AND CHANGING PATTERNS OF LABOR SUPPLY

Over the past few decades, the skilled–unskilled hours differential for U.S. men increased when the skill premium rose sharply, in contrast with dominant income effects. Based on PSID data, we show that over the 1967–2000 period, skilled men experienced a three times larger increase in wage volatility than unskilled men. With the rise in wage volatility, our general equilibrium incomplete markets model generates a 2.7 hours increase in the hours differential whereas it increased by 1.4 hours in the data. We find that hours adjustments are important for self‐insurance in the short run, whereas precautionary savings play a crucial role eventually.     

TRADE,TECHNOLOGICAL CHANGE,AND WAGE INEQUALITY: THE CASE OF MEXICO

Following the U.S.–Mexico trade integration, the skill premium rose dramatically in Mexico. Standard trade theory predicts the skill premium in a skill‐scarce country should fall—not rise—following such an integration. This article reconciles theory and data by building a model in which intermediate producers in Mexico begin to produce for the U.S. supply chain following liberalization. To do so, they must rent ideas from the United States, which are more skill‐intensive, thus increasing the skill premium. This mechanism is supported by the data: Mexican plants and industries that trade more with the United States rent more U.S. technology and have higher skill premia.     

ENDOGENOUS HUMAN CAPITAL INVESTMENT AND THE INTERACTION OF FRONTIER AND ADOPTIVE KNOWLEDGE ON GROWTH AND WAGE INEQUALITY

A three-sector, overlapping-generations growth model endogenizes the opportunity cost of human capital formation and the relative skill requirements of invention, innovation, and adoption of general-purpose technologies. As a result, the relative wage of skilled workers is a function of the endogenous ratio of total-to-adoptive knowledge (where the difference in knowledge stocks is frontier knowledge). Comparative statics are examined for the model's seven parameters. Simulations (representing a transition with phases to a more complex level of economic development) are presented for simultaneous exogenous shocks capable of matching (i) observed inverse movements of the relative wage and the detrended relative supply in the USA, (ii) the sharp slowing and recovering US multifactor productivity growth data since the 1970s, and (iii) a reconciliation of data used to support or deny skill-biased technological change as a major force driving up the relative wage since 1980.     

QUANTIFYING THE IMPACTS OF LIMITED SUPPLY: THE CASE OF NURSING HOMES

This article develops a new estimation method that accounts for excess demand and the unobserved component of product quality. We apply our method to study the Wisconsin nursing home market in 1999 and find that nearly 20% of elderly qualified for Medicaid were rationed out. However, our counterfactual experiment shows that the net welfare gain of fulfilling all nursing home demands may be small, because the welfare gain could be largely offset by the increase in Medicaid expenditures. We also find that a 1% increase in quality would crowd out 3.2% Medicaid patients in binding nursing homes.     

LABOUR MARKET SEGMENTATION: WAGE DIFFERENTIALS AND HYSTERESIS EFFECTS*

Competitive labour market analysis proposes that an individual's human capital endowment is the main mechanism for pay determination. This study develops a model to highlight hysteresis effects on either investment in physical capital for firms or investment in human capital for workers on wage differentials.     

DOWNWARDS WAGE RIGIDITY,ENDOGENOUS SEPARATIONS AND FIRM TRAINING

This paper analyses the effect of downwards wage rigidity on wage setting, wage compression and firm training. It is shown that downwards wage rigidity in future periods induces a wage penalty and increases wage compression in the present period. However, contrary to previous work this is not sufficient to increase firms’ training investments. The reason lies in the endogeneity of separations, which become more frequent.     

MINIMUM WAGE HIKES AND THE WAGE GROWTH OF LOW‐WAGE WORKERS

This paper presents difference‐in‐differences estimates of the impact of the British minimum wage on the wage growth of low‐wage employees. Estimates of the probability of low‐wage employees receiving positive wage growth have been significantly increased by the minimum wage upratings or hikes. However, whether the actual wage growth of these workers has been significantly raised or not depends crucially on the magnitude of the minimum wage hike considered. Findings are consistent with employers complying with the legally binding minimum wage but holding down or offsetting the wage growth that they might have awarded in periods of relatively low minimum wage hikes.     

THE EFFECTS OF TAXES ON LABOUR IN A DYNAMIC EFFICIENCY WAGE MODEL*

This paper studies the impact of wage and employment taxes in an intertemporal efficiency wage model. Cases with fixed, linear and quadratic adjustment costs associated with job creation are considered. In general, the model shows that an increase in the employment tax leads to an increase in unemployment, reducing job creation, and has ambiguous effect on wages; whereas an increase in the wage tax reduces wages and has ambiguous impact on unemployment and job creation.     

内生货币体系下房价波动对货币供求的冲击

在内生货币体系下,房价上涨导致我国内生货币扩张的途径主要有两条:一是基于房地产抵押信贷需求膨胀引致的商业银行内生货币供给的扩张;二是被房价持续上涨及人民币升值预期所吸引的外汇流入导致央行大量基础货币的被动投放。这样会对货币供应量目标有效性带来影响。因此应将房地产市场监测数据列入当前货币供应量调控的参照指标。     

THE IMPACT OF PERSONALITY TRAITS ON WAGE GROWTH AND THE GENDER WAGE GAP

This paper considers the impact of personality traits on the change of the gender wage gap. Using data from the German Socioeconomic Panel (SOEP), we first explore how personality traits affect wage growth rates. Then, a decomposition analysis is performed to analyse the dynamic effects of personality traits on the change of the gender wage gap over time. Our empirical results indicate that gender differences in conscientiousness and emotional stability lead to a widening of the wage gap over time. By contrast, gender differences in extraversion lead to a narrowing of the wage gap over time.