Is the ladder sticky? Measuring semi-parametrically state dependence in earnings mobility

Employing the U.S. data for the 1990’s, we disentangle state dependence from unobserved heterogeneity in earnings mobility. The fixed effects dynamic multinomial logit utilized to model earnings quintiles dynamics fits the data very well, much more so than the autocorrelated dynamic ordered probit. Unordered models should thus be preferred to study earnings mobility. State dependence is found to be significant. It has a protective (anti-fall) effect at the top of the distribution and a detrimental (anti-rise) effect at the bottom. Consequently, the difficulty of climbing the ladder is not exclusively a question of individual characteristics. Public policies could thus be implemented to improve information about individuals’ ability and job offers, and to design more efficient wage-setting institutions.     

Saving and investing for early retirement: A theoretical analysis

We study optimal consumption and portfolio choice in a framework where investors adjust their labor supply through an irreversible choice of their retirement time. We show that investing for early retirement tends to increase savings and reduce an agent's effective relative risk aversion, thus increasing her stock market exposure. Contrary to common intuition, an investor might find it optimal to increase the proportion of financial wealth held in stocks as she ages and accumulates assets, even when her income and the investment opportunity set are constant. The model predicts a decrease in risk aversion following strong market gains like those observed in the nineties.     

The disaggregated demand for labour in Greek industry

This paper employs the Granger test to examine the causal relationship between growth in the money supply and inflation for the US over the period 1959 to 1986. Alternative procedures, including both statistical search and non–statistical ad hoc methods, are utilized to determine the order of the bivariate distributed lag models used in implementing the test. In general, the results show feedback between movements in the money supply and price level changes. Unlike the results of Thornton and Batten (1985), one of the ad hoc methods for lag–length determination is found to perform somewhat better than the statistical search methods in correctly assessing the causal relationships involving money growth and inflation.     

FDI,SECTORAL OUTPUT AND REAL EXCHANGE RATE DYNAMICS UNDER FINANCIAL OPENNESS

This paper adopts an alternative approach to the study of the impact of capital inflow on the real exchange rate by foremost, analysing the effect of FDI inflow on the ratio of tradables to nontradables, and then estimating the relationship between the tradable‐nontradable ratio and the real exchange rate, while accounting for the role of financial openness. Based on data for a group of developing countries, the findings show that an increase in FDI inflow is associated with a decrease in the tradable‐nontradable ratio, and that an increase in the tradable‐nontradable ratio leads to a depreciation of the real exchange rate; this effect being greater with an increase in financial openness. This suggests that an increase in FDI inflow could result in an expansion of the nontradable sector, which would be associated with a greater appreciation of the real exchange rate under a higher level of financial openness.     

Is GDP a Relevant Social Welfare Indicator? A Savers–Spenders Theory Approach

The use of GDP as the main index of progress and welfare of a country has been the subject of a long debate among economists. Using and extending the savers–spenders theory, we analyse the theoretical relationship between GDP and the welfare of a society. This analysis is undertaken using several different overlapping generations models which all take into account the great heterogeneity of consumer behaviour observed in the data (different labour supply choices, different degrees of altruism and/or different degrees of impatience to consume). The results indicate that GDP (per capita) is often a relevant index and is always a decent social welfare indicator.     

Causality tests of export-led growth: The case of Mexico

Although econometric studies have confirmed the relationship between exports and economic growth, some studies are inherently weak in that they are based on an a priori assumption that export growth causes economic growth. This is erroneous because causality should be tested and proven rather than simply assumed. This paper uses the Granger causality test which takes into consideration the time series properties of the data to examine the incidence of export-led development in Mexico. The authors conclude that Granger causality test confirms the relationship between export growth and GDP growth in the Mexican case as posited by development theory.     

Downstream Research Joint Venture with Upstream Market Power

In a vertically related industry, we examine the downstream firms' incentives to invest in cost‐reducing Research and Development (R&D), and to form a Research Joint Venture (RJV), under two alternative structures of input supply: exclusive vertical relations and a single supplier. In contrast to the “hold‐up” argument, in which downstream firms invest non‐cooperatively and spillovers are low, R&D investments are higher under a single supplier than under competing vertical chains. Downstream firms' incentives to form a RJV are also stronger in the former case than they are in the latter. We identify conditions under which an RJV is beneficial for society. Integrated innovation and competition policies are also discussed.