Testing the Exogeneity of Argentine Devaluation and Default Risks in Retrospect*

This paper studies the relationship between devaluation and default risks during Argentina's convertibility regime. Before default and devaluation occurred, a harder variant of the currency regime was under discussion. An often‐suggested argument among the supporters of dollarization was that the probability of default could have been reduced by removing fears of devaluation. For this to be true, default risk must be dependent on the devaluation risk. Long‐run relationships and ‘exogeneity’ are examined using a ‘cointegrating vector’ system approach. The results show that only devaluation risk can be modelled on default risk. No empirical evidence is found in favour of dollarization. Moreover, these conclusions are maintained when the information set is expanded to include the Latin American risk and Argentine macroeconomic variables.     

An empirical investigation of the sustainability of the public deficit in Portugal

In this paper, we investigate Portuguese government expenditures and revenues as an example for a long time series. Our hypothesis states that there may be periods when the deficit is sustainable and those when it is not. Usually, after a period of unsustainable deficits, a new regime takes over. These regime shifts call for an approach that takes into account a non-constant structure of the underlying data generating process. Consequently, we use different tests which we set up in a time-varying framework. We apply and compare the results of the Trace test, Breitung’s non-parametric test and the Bohn test. We identify several break points and find that the Trace test performs worst in this case while Breitung’s test and the Bohn test give similar results. Comparing the results with history, we find that the last two tests best reflect what happened historically.     

Do consumers value nutritional labels?

The European Union is contemplating making the provision ofnutritional labels in food products mandatory. Using data collectedfrom food shoppers, we assessed consumers' valuation of nutritionallabels by analysing their willingness to pay a premium for abox of cookies with a nutritional label. On average, the meanwillingness to pay (WTP) for a box of cookies with a nutritionallabel is estimated to be about 11 per cent above the price ofthe box of cookies without a nutritional label. Consistent withprior expectations, our results also indicate a difference betweenthe WTP of individuals suffering from diet-related health problems(estimated mean 13 per cent) and those who do not suffer anydiet-related health problems (estimated mean 9 per cent).     

External labor market strategy and career success: CEO careers in Europe and the United States

In this paper, we examine the career histories of the chief executive officers (CEOs) affiliated with the 500 largest organizations in Europe and the 500 largest in the United States. Our purpose is to determine whether frequent career moves across employers, a phenomenon we label an “external labor market strategy,” brings greater career rewards than moves inside the same organization. The results reveal that an external labor market strategy is negatively related to career success. On both continents, CEOs who have spent a smaller fraction of their career in their current organization or have changed employers more often have taken a longer time from the start of their career to be promoted to the most influential corporate positions. The labor market institutions in the 22 countries sampled do not influence the relationship between an external labor market strategy and career success, while the specific geographic region in which the employers are located has a limited impact on this relationship. © 2009 Wiley Periodicals, Inc.     

Initiation of business relationships in service-dominant settings

Industrial companies today are becoming increasingly service-oriented and therefore need to shift from selling hardware to valuing services and managing customer relationships. A new and particularly significant challenge for these companies is how to initiate relationships which is an issue that has received surprisingly limited scientific attention. The aim of this study is to develop a conceptualization that explores the dynamics in the relationship initiation process in service-dominant settings. Narratives from three sellers of professional services, augmented with narratives from a buyer's view, form the empirical basis of the study. The dynamics in the relationship initiation process are clarified with three new concepts: status, converter, and inhibitor. The paper concludes with implications of the new conceptualization and suggestions for future research.     

The role of sharing in the circulation of knowledge

One of the points stressed in ‘A new paradigm in the organization of knowledge’, Futures, 26, 1994, pages 781–786, was the determinant role of sharing in the emergence and configuration of the paradigm of the immaterial. We resume the elements suggested then and develop their analysis in three stages: first, by characterizing the operational singularity of sharing; second, by considering its cognitive and disciplinary incidence; and finally, by pointing out its theoretical consequences, namely in what concerns the thematic of rationality.     

Scope economies in the pharmaceutical sector

The paper’s objectives are twofold: to propose an experimental simulation to measure scope economies between pairs of submarkets and to point out the role of submarkets in explaining the concentration level in the pharmaceutical market. We simulate scope economies consistent with the diversification choices of large international companies in the years 1987 and 1997. Our results suggest that: i) the random diversification (that is no scope economies hypothesis) is rejected, and ii) scope economies are significant. (JEL: C15, D21, L11, L65)     

Sul premio dell'assicurazione mista in presenza di tare

Con procedimento analitico si determina la formula di Lidstone per l'assicurazione mista su due teste tarate, qualunque sia il tipo di sopramortalità Si esaminano poi i casi di sopramortalità crescente, costante e decrescente e si deducono le formule che forniscono il premio puro mediante gli analoghi premi su teste normali, assegnando l'espressione dell'errore che si commette applicando tali formule.

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Through analytical methods we obtain Lidstone's formula for a mixed insurance on two extra risks.We also give an expression of the related approximation error.

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Pervenuto il 15-3-82     

Qualitative constraints as a tool of economic analysis

The paper emphasizes the significance of qualitative constraints on the decision formation of rational agents. These constraints influence the domain of an agent's potential actions and help him operate under conditions of relative certainty in an uncertain environment. They also provide multiple linkages between his organization and the rest of the economy.