Skilled–unskilled wage inequality,product variety,public input and increasing returns: A static general equilibrium analysis

The paper develops a four sector small open economy model with two traded final good sectors, a public intermediate good producing sector and a nontraded good sector producing varieties of intermediate goods. There are three primary factors: capital, skilled labour and unskilled labour. Industrial sector producing a traded good uses capital, intermediate goods and skilled labour as inputs. Intermediate goods producing sector also uses capital and skilled labour. Public input producing sector and the agricultural sector producing the other traded good use capital and unskilled labour as inputs. It is shown that, if production technologies are the same for the agricultural sector and the public input producing sector and if the scale elasticity of output is very low, then an increase in capital stock (unskilled labour endowment) raises (lowers) the skilled–unskilled wage ratio. However, an increase in skilled labour endowment does not produce any unambiguous effect. On the other hand, an increase in the tax rate on industrial output and/or an increase in the price of the agricultural product, armed with the same set of assumptions, lowers the skilled–unskilled wage ratio.     

Long-term debt and overinvestment agency problem

We investigate the role of long-term debt in influencing overinvestments by analyzing the pattern of abnormal investments around a new debt offering by unlevered firms. Before being levered when the disciplining role of debt is missing, firms retain excessive amounts of cash. The introduction of debt leads to a dramatic decline in cash ratios and the relation is stronger for firms classified as having poor investment opportunities. For the sub-sample of firms that overinvest in real assets, issuing debt leads to a reduction in abnormal capital expenditures. The decline in overinvestments is explained by debt service obligations that reduce discretionary funds under managerial control. Further, the reduction in overinvestments has a positive impact on equity value. These conclusions hold in other settings where there is a dramatic change in firms’ capital structures providing strong support for the hypothesis that debt reduces overinvestments.     

Issues in the Design and Reform of Commodity Taxes: Analytical Results and Empirical Evidence

The motivation of this paper is two fold: (a) review the literature on design and reform of commodity taxes, (b) describe attempts at extending the traditional framework. The paper states the principal results in optimal commodity taxation with attention paid to assumptions made in their derivation. Empirical evidence on the structure of optimal commodity taxes is presented with special reference to the issue of uniformity versus selectivity, and the redistributive potential of commodity taxes. The paper, then, provides analytical and empirical evidence on the following extensions to the traditional framework: (i) presence of child subsidy and demographic effects on demand, (ii) fiscal federalism, (iii) tax evasion.     

Child Labor, Child Schooling, and Their Interaction with Adult Labor: Empirical Evidence for Peru and Pakistan

Using data from Peru and Pakistan, this article tests two hypotheses:there is a positive association between hours of child laborand poverty, and there is a negative association between childschooling and poverty. Both of these hypotheses are confirmedby the Pakistani data, but not by the Peruvian data. The reductionin poverty rates due to income from children's labor is greaterin Pakistan than in Peru. The nature of interaction betweenadult and child labor markets varies with the gender of thechild and the adult. In Peru rising men's wages significantlyreduce the labor hours of girls, whereas in Pakistan there isa strong complementarity between women's and girls' labor markets.Both data sets agree on the positive role that increasing adulteducation can play in improving child welfare.     

Generalised cost scaling: A new approach to demographic variables in demand analysis

A new approach to modelling equivalence scales and household demand systems is introduced and its usefulness empirically demonstrated. The empirical results suggest that price effects on the general equivalence scale are more important than utility effect.     

International Capital Mobility and Saving-Investment Relationship in the Newly Industrialized Countries

This paper investigates the Feldstein-Horioka coefficients and evaluates the degree of international capital mobility for ten newly industrialized countries (NICs) over the different sub-periods from 1970 to 2010. By applying the Pedroni and Westerlund cointegration tests, we find that saving and investment are indeed cointegrated. The estimated FH coefficients using FMOLS and DOLS are 0.24 and 0.33, respectively, for the period 1970–1980. Furthermore, the estimated FH coefficients reduce from 0.80 (FMOLS) in 1991–2000 to 0.36 (FMOLS) in 1970–1980. The small FH coefficients suggest that international capital mobility increased in the NICs during the sub-periods 1970–1980 and 2001–2010.     

Skilled-unskilled wage inequality and unemployment: A general equilibrium analysis

The paper develops a static three sector competitive general equilibrium model of a small open economy in which skilled labor is mobile between a traded good sector and the non-traded good sector and unskilled labor is specific to another traded good sector. Capital is perfectly mobile among all these three sectors. We introduce involuntary unemployment equilibrium in both the labor markets and explain unemployment using efficiency wage hypothesis. We examine the effects of change in different factor endowments and prices of traded goods on the unemployment rates and on the skilled-unskilled relative wage. Also, we introduce Gini-Coefficient of wage income distribution as a measure of wage income inequality; and show that a comparative static effect may force the skilled-unskilled relative wage and the Gini-Coefficient of wage income distribution to move in opposite directions in the presence of unemployment.