Lord Acton and Employment Doctrines: Absolute Power and the Spread of At-Will Employment

This study analyzes the at-will employment doctrine using a tool that encompasses the complementarity of results-based utilitarian ethics, rule-based duty ethics, and virtue-based character ethics. The paper begins with a discussion of the importance of the problem followed by its evolution and current status. After describing the method of analysis, the central section evaluates the employment at-will doctrine, and is informed by Lord Acton’s dictum, “power tends to corrupt, and absolute power corrupts absolutely.” The conclusion explores the implications of the findings. This is a revised version of a paper presented at the World Ethics Forum, Oxford University, Oxford, UK April 9–12, 2006.     

Regularity and Pareto improving on financial equilibria with price-dependent borrowing restrictions

We consider a pure exchange, general equilibrium model, with two periods and a finite number of states, commodities, numeraire assets, and households. Participation in the asset markets is restricted in a household specific manner, imposing upper bounds on the amounts of borrowing which can be obtained using assets. Those bounds are assumed to depend on asset and commodity prices. After establishing existence of equilibria, we show that, generically in the set of the economies, equilibria are finite and regular. Then, we restrict our attention to the significant set of economies in which some associated equilibria exhibit a sufficiently high number of strictly binding participation constraints. We prove that, generically in that set, those equilibria are Pareto improvable through a local change of the participation constraints.     

Unit nonresponse errors in income surveys: a case study

A survey on the economic and social conditions of households in the city of Modena was carried out in 2002 and in 2006 (two waves) by the CAPP (Centre for Analyses of Public Policies). In the first wave of 2002, each designated sampling unit (i.e., the family) had three units as reserves. If the first refused to be interviewed, the interviewer contacted the three reserves, one after the other, until obtaining either one respondent or four non-participant units. At the end of the survey four categories of units were distinguished: interviewees, refusals, noncontacts, and unused reserves. All units were matched with their corresponding record in the databases of the Ministry of Finance of 2002 and the Census of 2001. The resulting data set permitted the analysis of unit or total nonresponses. The distribution of fiscal income showed different shapes for the four categories, implying a selective participation of the families. The interviewees yielded a positive bias of about 600?, holding constant other factors. The selection of the significant factors affecting nonresponse was performed via backward elimination in a logit model and with the lasso method. Participation increased as fiscal income and age increased and by education level (secondary school and university degree), while it decreased among entrepreneurs, independent workers, managers, and medium-to-low skilled workers.     

When do improved covariance matrix estimators enhance portfolio optimization? An empirical comparative study of nine estimators

The use of improved covariance matrix estimators as an alternative to the sample estimator is considered an important approach for enhancing portfolio optimization. Here we empirically compare the performance of nine improved covariance estimation procedures using daily returns of 90 highly capitalized US stocks for the period 1997–2007. We find that the usefulness of covariance matrix estimators strongly depends on the ratio between the estimation period T and the number of stocks N, on the presence or absence of short selling, and on the performance metric considered. When short selling is allowed, several estimation methods achieve a realized risk that is significantly smaller than that obtained with the sample covariance method. This is particularly true when T/N is close to one. Moreover, many estimators reduce the fraction of negative portfolio weights, while little improvement is achieved in the degree of diversification. On the contrary, when short selling is not allowed and T?>?N, the considered methods are unable to outperform the sample covariance in terms of realized risk, but can give much more diversified portfolios than that obtained with the sample covariance. When T?<?N, the use of the sample covariance matrix and of the pseudo-inverse gives portfolios with very poor performance.     

Profiting from destruction: The Iraq reconstruction,auditing and the management of fraud

While several US corporations have benefited tremendously from the Iraq reconstruction, the Iraqis and US taxpayers have not done as well. This paper argues that the Bush Administration's neoliberal agenda in Iraq created a corrupt, lawless environment in which corporations could reap huge profits through what would normally be called malfeasance. It further demonstrates how the audit reports produced by the Office of the Special Inspector General for Iraq Reconstruction helped to manage the impact of this massive fraud by giving the perception that the laissez-faire policies of the Bush administration were innocent mistakes, making the failures appear to be independent of one another, reconstructing corporate malfeasance as waste while criminalizing low level employees, and blaming the government agencies, the war and the Iraqis for the fraud.     

Precautionary savings of agents with heterogeneous risk aversion

This article focuses on the estimation of the importance of the precautionary motive in the wealth accumulation decision. We use the micro data set of the De Nederlandsche Bank (DNB) Household Survey (DHS) (CentERdata, Tilburg University), a Dutch household survey containing information on wealth, a subjective measure of income uncertainty and subjective qualitative measures of risk aversion. We find that only a small share of wealth is accumulated for the precautionary motive by the Dutch households. This share of wealth is constant across assets with different degrees of liquidity. The economic downturn of the period 2008 to 2010 seems to affect risk attitudes and precautionary saving. Our findings also suggest that the more risk-averse individuals are those who hold less savings.     

Low price conspiracy: Trade regulation and the case of Japanese electronics

Conclusion The analysis of low price conspiracy suggests that even if it were legal, it requires very special and uncommon conditions. Such conditions were not present in the U.S. television industry, and the Supreme Court correctly concluded that the evidence did not support the existence of a low price conspiracy involving Japanese television manufacturers. The Court indicated that persuasive actual cost evidence must be presented to overcome economic logic that predation is very unlikely. Predation can still be shown but the standard of proof is high. After all allegations of low price conspiracy may be more likely to limit competition than any actual low price conspiracy itself.     

Banking Market Structure, Financial Dependence and Growth: International Evidence from Industry Data

This paper explores the empirical relevance of banking market structure on growth. There is substantial evidence of a positive relationship between the level of development of the banking sector of an economy and its long-run output growth. Little is known, however, about the role played by the market structure of the banking sector on the dynamics of capital accumulation. This paper provides evidence that bank concentration promotes the growth of those industrial sectors that are more in need of external finance by facilitating credit access to younger firms. However, we also find evidence of a general depressing effect on growth associated with a concentrated banking industry, which impacts all sectors and all firms indiscriminately.