Maximin choice of voting rules for committees

In the context of a probabilistic voting model with dichotomous choice, we investigate the consequences of choosing among voting rules according to the maximin criterion. A voting rule is the minimum number of voters who vote favorably on a change from the status quo required for it to be adopted. We characterize the voting rules that satisfy the maximin criterion as a function of the distribution of voters’ probabilities to favor change from the status quo. We prove that there are at most two maximin voting rules, at least one is Pareto efficient and is often different to the simple majority rule. If a committee is formed only by “conservative voters” (i.e. voters who are more likely to prefer the status quo to change) then the maximin criterion recommends voting rules that require no more voters supporting change than the simple majority rule. If there are only “radical voters”, then this criterion recommends voting rules that require no less than half of the total number of votes.Received: June 2003, Accepted: September 2004, JEL Classification: D71Salvador Barberá, Carmen Beviá, Mirko Cardinale, Wioletta Dziuda, Joan Esteban, Mahmut Erdem, Bernard Grofman, Matthew Jackson, Kai Konrad, Raul Lopez, Jordi Massó, Hugh Mullan, Shmuel Nitzan, Ana Pires do Prado, Elisabeth Schulte, Arnold Urken and two anonymous referees provided helpful comments. Finally, I also acknowledge financial support from Capes, Brazilian Ministry of Education and Spanish Ministry of Science and Technology (Project BEC2002-02130).     

Sources of gains from international portfolio diversification

This paper looks at the determinants of country and industry specific factors in international portfolio returns using a sample of forty eight countries and thirty nine industries over the last three decades. Country factors have remained relatively stable over the sample period while industry factors have significantly increased during the last decade and dropped again since 2000. The importance of industry and country factors is correlated with measures of economic and financial international integration and development. We find that financial market globalization is the main driving force behind the changes in relative magnitude of the different shocks. Country factors are smaller for countries integrated in world financial markets and have declined as the degree of financial integration and the number of countries pursuing financial liberalization has increased. Higher international financial integration within an industry increases the importance of industry factors in explaining returns. Economic integration of production also helps in explaining returns. Countries with a more specialized production activity have higher country shocks.     

Rituals of cruise consumption and the 'new' middle class: desiring and 'devouring' maritime cruises

The consumption of maritime cruises is one of the most striking facets of the phenomenon of a new middle class emergence in Brazil. This study investigates the use of maritime cruises by emerging middle-class consumers to enact their new social status. Specifically, the research looks at ritualistic behaviour performed by consumers before, during, and after a cruise. The research uses a multi-method design characterised by a combination of ethnography and group discussions. The study contributes to enlarge McCracken’s typology of consumption rituals, showing how emerging consumers use the cruise as a rite of passage, during which they perform rituals of preparation, production, possession, and divestment. It also sheds light on specific rituals performed by consumers in order to transfer meanings from the cruise to their own selves. Finally, the findings suggest that consumption rituals in the context of social ascent may not have the transformative power of traditional rites.     

Workload control under continuous order release

Workload control is a production planning and control concept specifically designed for complex manufacturing environments. Past research on Workload control has been essentially focused on discrete order release. This means that release of orders to the shop floor takes places on a periodic basis. Continuous order release has been somehow neglected, in spite of its apparent potential for improving system performance, including the reduction of order flow times. This paper presents a simulation study of this order release approach. The study contributes for improving the basis for setting workload norms, selecting the workload control strategy and deciding upon routing alternatives under continuous order release.     

Assessing the technology contribution to value added

Technology and knowledge are two key components for economic growth; however, the two concepts are not consensually defined. This paper proposes a model to assess and quantify the technology contribution to the value-adding process. The methodological approach implied building an operational concept for technology that is independent of the concepts of knowledge and capital. As such, technology could be interpreted and quantified as an input parameter in a new production model. This model interprets and assesses, separately, the value contributions of the uses of technology, of knowledge and of capital in a production process, defining the Technology Index for that process. The model is applied to manufacturing sectors of seven European countries, quantifying their respective dependences on technology. A comparison of the Technology Index proposed here is made with the OECD's Technology Intensity factor, arguing that the former reflects the technology dependence better that the latter. Accordingly, a criterion for classifying the economic sectors' dependence on technology is proposed. A main contribution from this study is an objective classification criterion for technology dependence of firms and economic sectors. It also provides an easy benchmark procedure for knowledge and capital dependence between firms and sectors.     

Bad news does not always travel fast: evidence from Chapter 11 bankruptcy filings

This paper examines the stock price performances of 275 non‐financial, non‐utility U.S. industrial firms that continue trading on the main exchanges after filing for Chapter 11 bankruptcy between 1 October 1979 and 17 October 2005. This paper identifies a negative and statistically significant post‐bankruptcy drift that lasts for at least 6 months. This finding adds to the literature showing that the market is unable to process bad public news events in a timely manner. Further analysis suggests that the theoretical model proposed by Hong and Stein (1999) can be used to help explain this market‐pricing anomaly.     

An integrated competency‐based approach to management education: an Italian MBA case study

Several studies have analysed the impact of competency‐based methodologies on human resource management, with special emphasis on their applications to management education and development. As concerns management education, however, these studies have usually focused on one or few separate aspects, never proposing a consistent application of competency‐based methodologies throughout the entire educational process. This paper shows how it is possible to design, deliver and monitor a management education programme that uses, in an integrated manner, a multiplicity of competency‐based tools in all the stages of the process, and discusses the application of such an integrated approach to an Italian MBA programme. This study provides a multiple constituency framework that integrates educational institutions, students and the companies that hire them in the design, implementation and control of effective, competency‐based, management education.     

Single versus multiple channel strategies: typologies and drivers

Companies across every industry are increasingly relying on multiple channels to make their services available to consumers. Despite the popularity of multiple channel strategies, little is known about these distribution structures. In fact, the determinants of multiple channel strategies have remained virtually unexplored. The purpose of this article is to look at various approaches to classifying single versus multiple channel strategies, to look at some of the drivers of multichannel usage and to propose a new classification of single/multiple channels. Using data from the retail financial services sector, the article demonstrates that research into the drivers of multi-channels is sensitive to the classification used.     

Keeping Up with the Joneses: A Model and a Test of Collective Accounting Fraud

This paper explains the variations in incidence of accounting fraud across economic settings by putting the behaviour and motivation of managers under the microscope. To safeguard their reputation in the managerial labour market, managers of firms that perform poorly are prone to fraudulently inflate earnings if they expect the economy to be strong, since that raises the likelihood of peers reporting high performance. A realised level of economic activity, on the other hand, counteracts this tendency on the part of managers to overstate earnings, by reducing the number of firms that actually perform poorly. We term these two effects the incentive effect and the need effect, respectively. The two effects yield a distinctive relationship between the incidence of accounting fraud and macroeconomic conditions. Specifically, the fraction of firms fraudulently over-reporting earnings is positively related to expected economic performance and negatively related to realised economic performance.
The incentive and need effects on collective fraud are examined empirically by relating proxies of the aggregate incidence of accounting fraud to expected and realised GDP growth rates. The results unambiguously support the predicted influence of macroeconomic performance.     

Combining equilibrium,resampling, and analyst’s views in portfolio optimization

This paper proposes the use of a portfolio optimization methodology which combines features of equilibrium models and investor’s views as in Black and Litterman (1992), and also deals with estimation risk as in Michaud (1998). In this way, our combined methodology is able to meet the needs of practitioners for stable and diversified portfolio allocations, while it is theoretically grounded on an equilibrium framework. We empirically test the methodology using a comprehensive sample of developed countries fixed income and equity indices, as well as sub-samples stratified by geographical region, time period, asset class and risk level. In general, our proposed combined methodology generates very competitive portfolios when compared to other methodologies, considering three evaluation dimensions: financial efficiency, diversification, and allocation stability. By generating financially efficient, stable, and diversified portfolio allocations, our methodology is suitable for long-term investors such as Central Banks and Sovereign Wealth Funds.