PRODUCT MARKET COMPETITION AND AGENCY COSTS*

We model the effects of competition on managerial efficiency and isolate the agency effect of competition, present only in firms subject to agency costs, from the direct pressure effect of competition, which is present in all firms. Using a unique set of Canadian data that surveys both firms and their employees, we then evaluate the empirical significance of these two effects. We find that competition has a significant direct pressure effect as well as a significant agency effect. Both effects increase the importance firms place on quality improvements and cost reductions as well as on contractual incentives and employee effort.     

The Size and Incidence of the Losses from Noise Trading

Recent empirical research has identified a significant amount of volatility in stock prices that cannot easily be explained by changes in fundamentals; one interpretation is that asset prices respond not only to news but also to irrational “noise trading.” We assess the welfare effects and incidence of such noice trading using an overlapping-generations model that gives investors short horizons. We find that the additional risk generated by noise trading can reduce the capital stock and consumption of the economy, and we show that part of that cost may be borne by rational investors. We conclude that the welfare costs of noise trading may be large if the magnitude of noise in aggregate stock prices is as large as suggested by some of the recent empirical litrature on the excess volatility of the market.     

Positive Feedback Investment Strategies and Destabilizing Rational Speculation

Analyses of rational speculation usually presume that it dampens fluctuations caused by “noise” traders. This is not necessarily the case if noise traders follow positive-feedback strategies—buy when prices rise and sell when prices fall. It may pay to jump on the bandwagon and purchase ahead of noise demand. If rational speculators' early buying triggers positive-feedback trading, then an increase in the number of forward-looking speculators can increase volatility about fundamentals. This model is consistent with a number of empirical observations about the correlation of asset returns, the overreaction of prices to news, price bubbles, and expectations.     

Electronic temperature control in electric ovens for increased accuracy in food research

In food research, temperature is one of the variables that must be controlled at all times; household electric ovens are often used for this purpose. The aim of this study was to determine whether an electronic temperature controller (ETC) – an electronic apparatus with a solid-state switch and sensitive sensor – can provide improved temperature control, and consequently sustained food quality, compared with a capillary thermostat in a household electric oven. It was found that the ETC is indeed able to provide better temperature control in household electric ovens. It can, therefore, make a valuable contribution to food research, where consistency during replication is vital for the reliability of research results.     

MIGRATION AND ECONOMIC GROWTH IN BRAZIL: EMPIRICAL APPLICATIONS BASED ON THE SOLOW‐SWAN MODEL

The paper addresses the question of whether migration plays a role in the determination of the per capita incomes in sub‐regions of Brazil. In order to discuss this relationship, we slightly modified the Solow‐Swan model with migration to better resemble the Brazilian context. Based on this model, we determined theoretically five different possibilities for the spatial dynamics regarding net migration, human capital differentials between migrants and nonmigrants, and capital stock per effective worker. We applied this framework to census data and the microregions in Brazil were empirically classified in one or other of these possibilities with the multivariate technique of cluster analysis. Finally, we used econometric models with instrumental variables applied to panel data and observed a tendency of increase in the variability of per capita income due to migration.     

Prudence comptable et évolution temporelle des propriétés prévisionnelles des résultats de l’exercice en ce qui a traitaux flux de trésorerie futurs et aux résultats futurs: constatations relatives au compromis pertinence‐fiabilité

Selon les observations des auteurs, l’augmentation du degré de prudence comptable au cours de la période s’échelonnant de 1973 à 2005 est associée aux facteurs suivants : 1) les propriétés prévisionnelles croissantes des résultats de l’exercice en ce qui a trait aux flux de trésorerie futurs et 2) les propriétés prévisionnelles décroissantes des résultats de l’exercice en ce qui a trait aux résultats futurs. Les auteurs constatent également que l’utilité des résultats pour expliquer le cours des actions par rapport aux valeurs comptables est en relation positive avec la fiabilité, mais non avec la pertinence. Les résultats de l’étude se vérifient pour l’échantillon constant et l’échantillon intégral, à la fois dans les analyses sur échantillon et hors échantillon, et ils résistent à l’utilisation d’autres indicateurs de pertinence, de fiabilité, d’utilité des résultats et de prudence. Les conclusions des auteurs au sujet des relations entre la prudence, la pertinence, la fiabilité et l’utilité semblent accréditer l’existence d’un compromis entre pertinence et fiabilité et paraissent indiquer que l’adoption d’un nombre croissant de normes comptables prudentes pourrait être préjudiciable à l’utilité des résultats en raison d’une incidence négative sur la fiabilité.     

Monetary Policy and Inflation Expectations in Latin America: Long-Run Effects and Volatility Spillovers

This paper uses multiple cointegration analysis to estimate simultaneously a monetary reaction function and the determinants of expected inflation for Brazil, Chile, Colombia, and Mexico. In addition, M-GARCH modeling is used to test for the presence of volatility spillovers between the monetary stance and inflation expectations. The analysis shows that there are long-term relationships between the interest rate, expected inflation, and the inflation target, and that greater volatility in the monetary stance increases the volatility of expected inflation in Brazil, Colombia, and Mexico.     

Optimal Nonlinear Income Taxation with Habit Formation

It has recently been shown that incorporating “keeping up with the Joneses” preferences into a prototypical two‐ability‐type optimal nonlinear income tax model leads to higher marginal tax rates for both types of agents. In particular, the high‐skill type faces a positive marginal tax rate, rather than zero as in the conventional case. In this paper, agents’ utility functions are postulated to exhibit “habit formation in consumption” such that the prototypical two‐ability‐type optimal nonlinear income tax model becomes a dynamic analytical framework. We show that if the government can commit to its future fiscal policy, the presence of consumption habits does not affect the standard results on optimal marginal tax rates. By contrast, if the government cannot precommit, the high‐skill type will face a negative marginal tax rate, while the low‐skill type’s marginal tax rate remains positive.