This paper disentangles the age-productivity-wage nexus by estimating productivity and wage equations with longitudinal employer-employee panel data for Belgium. Results indicate that workers above 49 years are significantly less productive than their younger colleagues. Moreover, while relative productivities across age groups are not found to differ significantly between ICT and non ICT firms, the upward sloping age-wage profile appears to be somewhat steeper in ICT firms. Yet, whatever the ICT environment, findings show that young workers are paid below and older workers above their marginal productivity. This pattern is in line with the deferred payment model developed by Lazear (J Polit Econ 87:1261–1284, 1979). 相似文献
Empirical studies report inconclusive assessment of duration-based immunization, notably showing that more sophisticated strategies do not outperform immunization relying on Macaulay duration. This article provides a mean–variance framework to explain this puzzle. We characterize the efficient portfolio allocations for a stylized barbell strategy trading off reinvestment risk with discounting risk. We show, in a model-free setting, that barbell allocations form a convex set in the mean–variance space, and the endpoints of the efficient frontier can switch as time passes, reversing the set of efficient allocations. Consequently, duration-based immunization, which is not minimum variance, can exhibit temporary inefficiency. This result is numerically illustrated in a one-factor Gaussian and a two-factor non-Gaussian model. Using yield curve scenarios resampled from U.S. data over the 1977–2020 period, we further corroborate our conclusions non-parametrically, and find that duration-based immunization is sometimes inefficient. 相似文献
This article focuses on the problems surrounding ‘compunication’, ie the growing imbrication between electronic computers and telecommunications. (The corresponding French term is télématique). More precisely, the specific problems of videotex systems thrown up by different experiments in Belgium are examined. The CCITT of the ITU uses the term videotex as the generic name referring to all systems that make it possible to gain information through telecommunication networks (Hertzian waves, cable TV distribution networks or telephone lines). Requested information appears on a TV screen (at home, in a place of work or in a public place). 相似文献
The Mayoux Report is the official report of a Committee of Inquiry headed by Jacques Mayoux that examined problems of the local and regional financial opportunities of small and medium-sized firms. This note, written by two of the aides to Mr. Mayoux in the preparation of the report, provides a summary of the major findings and suggestions of the Committee regarding banking reform. The principal recommendations include the simplification and decentralization of the granting of credit in France and continued steps toward the balancing of the rules and conditions governing lending and deposit collection among the various French financial institutions. It appeared to the Committee that the compartmentalization of French financial institutions due to the special rules under which specific institutions are permitted to operate was the major obstacle preventing better distributions of credit in France. 相似文献
Using a rich data set of the Dutch manufacturing sector between 1995 and 2010, we investigate the effect of foreign direct investment (FDI) on domestic new firm entry. The emerging empirical literature has focused on the direct relationship between FDI and entry, but has not explored the mechanisms behind the observed effect. Drawing on a simultaneous equations model, our analysis features both the direct effect of FDI as well as indirect effects through two channels: industry competition and wages. We estimate the parameters through 3SLS and take into account the endogeneity of competition and wages with respect to entry. Our results show that there is a significant negative direct effect of FDI on entry. At the same time, FDI decreases competition and increases wage levels, which then impact entry positively and negatively, respectively. The total effect of FDI is negative, but small and virtually disappears after one year. Policy implications are discussed.
We study the collapse of collusion in Québec's retail gasoline market following a Competition Bureau investigation, and show that it involved two empirical regularities: high margins, and asymmetric price adjustments. Using weekly, station‐level prices we test whether collusion was successful, and whether asymmetric adjustments were part of the cartel's strategy. We do so in the markets targeted by the investigation, and in markets throughout the province with similar pre‐collapse pricing (cyclical markets). Our results suggest that stations in both target and cyclical markets adjusted pricing following the announcement: margins fell (by 30%/15% in target/cyclical markets), and adjustments became more symmetric. 相似文献
We combine two datasets to examine whether the presence of banks affects the profitability and outreach of microfinance institutions. We find evidence that competition matters. Greater bank penetration in the overall economy is associated with microbanks pushing toward poorer markets, as reflected in smaller average loans sizes and greater outreach to women. The evidence is particularly strong for microbanks relying on commercial-funding and using traditional bilateral lending contracts (rather than group lending methods favored by microfinance NGOs). We consider plausible alternative explanations for the correlations, including relationships that run through the nature of the regulatory environment and the structure of the banking environment, but we fail to find strong support for these alternative hypotheses. 相似文献