Collective consumption and welfare

Abstract.  In this paper, we present a collective model of household demand based on Pareto‐efficiency. In addition, we suppose that (a) each household member is egoistic and consumption is purely private, (b) there is a set of distribution factors and (c) there is one exclusive good. Then we derive the testable restrictions that are implied by this theoretical setting and show how welfare comparisons at the individual level can be performed. JEL classification: D11     

On the impact of leverage constraints on asset prices and trading volume

Abstract. Researchers have used stylized facts on asset prices and trading volume in stock markets (in particular, the mean reversion of asset returns and the correlations between trading volume, price changes and price levels) to support theories where agents are not rational expected utility maximizers. This paper shows that this empirical evidence is in fact consistent with a standard infinite horizon – perfect information – expected utility economy where some agents face leverage constraints similar to those found in todays financial markets. In addition, and in sharp contrast to the theories above, we explain some qualitative differences that are observed in the price-volume relation on stock and on futures markets. We consider a continuous-time economy where agents maximize the integral of their discounted utility from consumption under both budget and leverage constraints. Building on the work by Vila and Zariphopoulou (1997), we find a closed form solution, up to a negative constant, for the equilibrium prices and demands in the region of the state space where the constraint is non-binding. We show that, at the equilibrium, stock holdings volatility as well as its ratio to stock price volatility are increasing functions of the stock price and interpret this finding in terms of the price-volume relation. We would like to thank the editor and two anonimous referees for valuable substantive comments. Our gratitude also to Franklin Allen, Kerry Back, Domenico Cuoco, Xavier Freixas, Sanford Grossman, Michel Habib, Lutz Hendricks, Richard Kihlstrom, Fernando Restoy, Mary Thomson, Jean-Luc Vila, participants to seminars at Birkbeck College, Carnegie-Mellon, Columbia, ESSEC, HEC, IAE, INSEAD, London Business School, London School of Economics, McGill, Michigan, National University of Singapore, Pompeu Fabra, North Carolina, Washington-St-Louis, Wharton, the Jornadas de Economía Financiera BBV, and the Meetings of the Society for Economic Dynamics and Control and the American Finance Association. Special thanks are due to Süleyman Basak for his enthusiastic support and many helpful suggestions. The usual disclaimer applies. We gratefully acknowledge the support of the BBV and Caja de Madrid Foundations and CREF (both authors) and of the Spanish Ministry of Education under DGICYT grant no. PB93-0388 (first author).     

Entry and Exchanges of Cost Information

The literature on exchanges of information has ignored firms' entry decisions. Yet, the Federal Trade Commission recently expressed concerns that exchanges of information in business-to-business electronic platforms would adversely impact entry and, thus, consumers. When entry decisions are endogenized in a competitive Cournot model with cost uncertainty, we find results that contrast sharply with current thinking on the welfare consequences of information sharing.     

Monetary incentives and environmental concern. Effects of a differentiated garbage fee

Market-based instruments, i.e., economic incentives and disincentives, are gaining popularity in environmental policy. However, research on the effectiveness of economic incentives for regulating environmentally relevant consumer behaviour demonstrates convincingly that the implementation of this instrument is based on inadequate assumptions concerning the motivation guiding consumer behaviour. In this paper it is argued that stronger focus should be placed on studying how the regulation instrument influences the perception of the environmentally relevant activity that it was meant to regulate. The attitudes of Danish citizens towards differentiated garbage fees (implying a relatively small economic incentive) and the impact of its implementation on the attitude towards recycling are analysed. The attitude towards differentiated garbage fees is primarily determined by the perceived equity of differentiated garbage fees and its perceived effectiveness with regard to combating waste problems. The most important determinant of the attitudes towards recycling activities is the expected environmental and public benefits. However, empirical support is found for the hypothesis that the use of monetary incentives at the consumer level may re-frame the recycling issue into the sphere where private cost-benefit calculations apply. The negative effects of this re-framing can more than outweigh the positive impact of the monetary incentive on attitudes and behaviour.

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Zusammenfassung Monetäre Anreize und Umweltbewutsein. Die Wirkung differenzierter Müllgebühren. Marktkonforme Instrumente wie ökonomische Anreize oder Strafen werden in der Umweltpolitik immer populärer. Allerdings zeigen Forschungsergebnisse über die Wirksamkeit ökonomischer Anreize für die Regulierung umweltrelevanten Konsumentenverhaltens, da\ die Anwendung dieses Instrumentes auf unzweckmä\igen Annahmen über die Motivation beruht, die dem Verbraucherverhalten zugrunde liegt. In diesem Beitrag wird gefordert, da\ die Frage stärker in den Mittelpunkt gerückt werden mu\, wie das Regulierungsintrument die Wahrnehmung des umweltrelevanten Verhaltens beeinflu\t, das reguliert werden soll. Eine empirische Studie untersucht die Einstellungen dänischer Bürger gegenüber differenzierten Abfallgebühren (die einen relativ kleinen ökonomischen Anreiz bieten) und die Wirkung dieser Ma\nahme auf die Einstellung gegenüber der Wiederverwertung. Die Einstellung zu differenzierten Müllgebühren wird in erster Linie durch ihre wahrgenommene Gerechtigkeit bestimmt und durch ihre wahrgenommene Wirksamkeit gegenüber den Müllproblemen. Die wichtigsten Determinanten der Einstellung gegenüber der Müllwiederverwertung sind ihre erwarteten allgemeinen Umweltvorteile. Allerdings sprechen die Daten für die Hypothese, da\ monetäre Anreize das Thema der Müllwiederverwertung auf Verbraucherebene auf das Niveau privater Nutzen-Kosten-Kalkulationen herunterdrücken. Die negativen Effekte dieser Verschiebung könnten die positiven Wirkungen monetärer Anreize auf Einstellung und Verhalten sogar überkompensieren.

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The research reported in this paper was sponsored by grants from the Danish Environmental Protection Agency and the Danish Social Science Research Council.     

Sustainability adrift: An evaluation of the credibility of sustainability information disclosed by public organizations

This article aims to evaluate the credibility of information disclosed by public organizations in terms of sustainable development. It focuses on an under-studied aspect in the sustainability reporting literature—namely, the factors that may affect the credibility of disclosure practices. The study is based on a qualitative analysis of the sustainable development content of annual management reports disclosed by 113 ministries and public bodies in the province of Quebec, Canada. The findings shed more light on the main factors that affect the credibility of the information disclosed therein, particularly in terms of lack of transparency and flawed monitoring mechanisms.     

Some Further Results on the Tempered Multistable Approach

This article provides new results on the tempered multistable approach. After a preliminary section recalling the main definitions, we show the correspondence between a series representation and a characteristic function representation for asymmetrical field-based tempered multistable processes and for asymmetrical independent increments tempered multistable processes. We also show that both processes are semimartingales, which is a convenient property in finance. Next, we study the structure of autocorrelations that is conveyed by this approach. Finally, we provide an illustration showing the term structures of Value-at-Risk that can be obtained with this model.     

How many educated workers for your economy? European targets,optimal public spending,and labor market impact

This paper studies optimal taxation schemes for education in a search-matching model where the labor market is divided between a high-skill and a low-skill sector. Two public policy targets - maximizing the total employment level and optimizing the social surplus - are studied according to three different public taxation strategies. We calibrate our model using evidence from thirteen European countries, and compare our results with the target from the Europe 2020 Agenda for achievement in higher education. We show that, with current labor market characteristics, the target set by governments seems compatible with the social surplus maximization objective for some countries, while being too high for other countries. For all countries, maximizing employment would imply higher educational spending than that required for the social surplus to reach its maximum.