On optimality in intergenerational risk sharing

Summary. This paper defines and studies optimality in a dynamic stochastic economy with finitely lived agents, and investigates the optimality properties of an equilibrium with or without sequentially complete markets. Various Pareto optimality concepts are considered, including interim and ex ante optimality. We show that, at an equilibrium with a productive asset (land) and sequentially complete markets, the intervention of a government may be justified, but only to improve risk sharing between generations. If markets are incomplete, constrained interim optimality is investigated in two-period lived OLG economies. We extend the optimality properties of an equilibrium with land and give conditions under which introducing a pay-as-you-go system at an equilibrium would not lead to any Pareto improvement. Received: October 5, 1998; revised version: April 3, 2001     

Reconciling sustainability and discounting in Cost–Benefit Analysis: A methodological proposal

The incorporation of the intergenerational equity objective has rendered the traditional Cost–Benefit Analysis (CBA) approach obsolete for the evaluation of projects presenting an important number of environmental externalities and for those whose impacts extend throughout a long period of time.Based on the assumption that applying a discount rate rewards current consumption and, therefore, that it is only possible to introduce a certain intergenerational equity in a Cost–Benefit Analysis, in this work we propose an approach to discounting based on a different rationale for tangible and intangible effects. We designed two indicators of environmental profitability: a) the Intergenerational Transfer Amount (ITA), which quantifies in monetary units what the current generation is willing to pass on future generations when an environmental restoration project is carried out, and b) the Critical Environmental Rate (CER), measures the implicit environmental profitability.These concepts were tested through an empirical case study pertaining to the assessment of an Erosion Control Project in the southeast of Spain. The results yield traditional profitability indicators that are higher — and probably closer — to the real values set by the contemporary society. The information provided by the environmental profitability indicators proposed renders more transparency to the quantification of the levels of intergenerational equity applied, thereby facilitating the difficult reconciliation of the CBA technique with the objective of sustainability.     

The determinants of commercial banking profitability in low-, middle-, and high-income countries

Using a broad bank-level dataset and the GMM estimator technique described by Arellano and Bover (1995), this paper analyses how bank-specific characteristics, macroeconomic variables, and industry-specific factors affect the profitability of 10,165 commercial banks across 118 countries over the period from 1998 to 2012. Grouping the countries according to three income levels, we show that the determinants of bank profitability included in our model can explain existing profitability differences among commercial banks in low-, middle-, and high-income countries. The profitability determinants vary quite widely across the different levels of income in terms of significance, sign and size of the effect. The level of income has thus an important impact on the determinants of bank profitability.     

Social Security with Heterogeneous Populations Subject to Demographic Shocks

In a previous paper, we showed how a pay-as-you-go social security scheme, based on voluntary contributions, can be an appropriate institution to reach an optimal sharing of risks among generations in the presence of demographic uncertainties. We study here the functioning of such schemes when there are different population strata, with different demographic shocks and wages. We show that while a collective voluntary pay-as-you-go scheme can provide efficient intergenerational risk sharing, it is likely to be destabilized by pensions funds specialized by agents' types. This is true both when there is a complete set of contingent markets, where the risk pooling capabilities of a collective fund are potentially of less interest, and when markets are incomplete. In this last circumstance, a collective fund may help the living agents to share their intragenerational risks. However, we show that the resulting allocation does not Pareto dominate the outcome of individual funds by agent types, and that there are incentives for agents to separate from any collective organization.     

Free entry and stability in a cournot model

In a Cournot model for a single homogeneous good, we study simultaneously two stability properties of a Cournot equilibrium: the stability of a continuous quantity adjustment process with a fixed number of firms and the stability relative to entry. Under usual assumptions, we show that these two properties are consistent—i.e., there exists an equilibrium that is stable in both senses—and determine quite sharply the number of active firms.     

Fares and Free Riders on the Information Highway

Public policy issues around access to networked information are explored and examined. Long viewed as the quintessential public good, information has evolved into a critically important market commodity in little more than a generation. New technologies and a political climate in which the meaning of universal access to information is no longer commonly understood and in which its importance is no longer taken for granted pose significant challenges for American society. Libraries, as information commons, offer the means of meeting those challenges. Historical, economical, and professional factors that shape the conflict are described and discussed.     

Product Market Competition,Managerial Incentives and Firm Valuation

This paper contributes to the very small empirical literature on the effects of competition on managerial incentive schemes. Based on a theoretical model that incorporates both strategic interaction between firms and a principal agent relationship, we analyse the relationship between product market competition, incentive schemes and firm valuation. The model predicts a nonlinear relationship between the intensity of product market competition and the strength of managerial incentives. We test the implications of our model empirically based on a unique and hand‐collected dataset comprising over 600 observations on 200 Swiss firms over the 2002–2005 period. Our results suggest that, consistent with the implications of our model, the relation between product market competition and managerial intensive schemes is convex indicating that above a certain level of intensity in product market competition, the marginal effect of competition on the strength of the incentive schemes increases in the level of competition. Moreover, competition is associated with lower firm values. These results are robust to accounting for a potential endogeneity of managerial incentives and firm value in a simultaneous equations framework.     

The contribution of granular and fundamental comparative advantage to European Union countries' export specialisation

This paper analyses the contribution of fundamental comparative advantage (a country-specific component) and granular comparative advantage (a firm-specific component) to European Union countries' export specialisation. We find that, on average, granular comparative advantage may explain export specialisation in 29% of industries, which account for 47% of total exports. We also show that 60% of the variation in export specialisation across countries and industries may be explained by granular comparative advantage. These results highlight that some outstanding firms may play a very important role in explaining European Union countries' export specialisation.     

Antecedents of emotional attachment of social media users

Emotional attachment has been documented to be an effective basis for consumer loyalty behaviors in many contexts; however, not much has been offered for new service formats enabled by information technology. This study explores the emotional attachment of social media users in terms of personality traits of users and websites. Drawing on literature on brand personality and brand–self congruence, this research proposes that a match between user’s individual personality and the personality traits of the digital artifacts promotes affective connection to social media websites. The social media, to which the user becomes emotionally attached, therefore becomes part of one’s self-definition and representation in the digital world. Self-expressiveness is also investigated as a motivational driver that helps users form such an emotional bond. Individuals with higher motivation to express themselves are more likely to develop an emotional attachment to social networking sites, exhibit loyal behavior, and experience a stronger effect than self-website congruence on emotional attachment. Results of this research provide support to the proposed relationships. Theoretical and managerial implications are elaborated in the discussion.     

The Tourism Market's Response to the 2009 Black Saturday Bushfires: The Case of Gippsland

One of the key roles of a destination marketing organization (DMO) is to portray their destination in such a way that it is both appealing and inviting to their existing and potential tourism market. A challenge faced by a DMO in the regional Victorian destination of Gippsland in Australia, is the fact that they also have to manage unanticipated sudden changes in market perceptions that may occur in response to a disastrous event. The reoccurring natural disasters of this region (fires, floods and drought)—the most recent being the 2009 Black Saturday bushfires, deemed Australia's worst natural disaster in history—make it imperative that DMOs can respond effectively. This article presents the findings of an exploratory research project designed to investigate the tourism market's response to this particular disastrous event. The primary aim of the research was to better understand how a large-scale disaster impacts upon the tourist's destination image and visitation intentions, and the role of the media in these deliberations. Focus group research reveals the post-disaster media interpretations, images, and visitation intentions of intrastate and interstate, regional and metropolitan tourists. Differences are observed in relation to the participants' geographic location and distance from the fires and their understandings of the event, including their reflections on media coverage. Varying perceptions among the participants of the impact of the fires, the travel risk, and subsequent travel intentions are discussed. Managerial implications relating to media management and the refinement of future disaster management strategies are also presented.