Nash implementation and uncertain renegotiation

We study Nash implementation when the outcomes of the mechanism can be renegotiated among the agents but the planner does not know the renegotiation function that they will use. We characterize the social objectives that can be implemented in Nash equilibrium when the same mechanism must work for every admissible renegotiation function, and show the importance of allowing the planner to sometimes take away resources from the agents.     

Economic feasibility analysis for electrical generation from biogas in waste disposal sites in Mexico City

This article highlights the main aspects related to energy generation from biogas in a controlled landfill of Mexico City in order to determine profits and environmental benefits. The designed structures and public policies to provide waste management services in Mexico City have been exceeded. A significant increase in demand has led the government of Mexico City to base public services on rudimentary techniques using obsolete equipment. The modernization of waste disposal facilities and the diversification of services linked to waste treatment can offer several business opportunities to optimize energy generation from solid wastes. The use of landfills to dispose large amounts of waste enables the energy generation from biogas. The energy generated can diversify the electricity market and provide economic benefits to landfills managers to cover operational costs.     

“Si él lo necesita”: Gypsy fairness in Vallecas

“Si él lo necesita” (if he really needs it) was the most common argument given by the subjects who accepted the zero offer in the ultimatum game (strategy method) during experiments conducted among illiterate (adult) gypsies in Vallecas, Madrid. Interestingly the acceptance of the zero offer was not a rare case but, in contrast, was the modal value. This is even more remarkable if we consider that the 97% of the subjects proposed the equal split. Electronic Supplementary Material Supplementary material is available in the online version of this article at http://dx.doi.org/10.1007/s10683-006-9126-0. JEL Classification D63 · D64 · C93 · J15     

Inter-fuel substitution,technical change and the demand for energy in the UK economy

A model for energy demand, based on a translog cost function is formulated. Unlike previous studies, technical progress is modelled by means of stochastic, as opposed to deterministic, trend components. The model is estimated using quarterly UK data for four economic sectors, and forecasts of the future level of demand are made.     

Ecological footprint analysis of road transport related to tourism activity: The case for Lanzarote Island

This work tries to evaluate road transport usage in Lanzarote Island and its implications for sustainable tourism development. The methodology followed here is the ecological footprint indicator. Its evaluation is based on projections of trip matrix estimated for Lanzarote Island. This study allows us to determine, in an approximate way, the environmental impact (that is, the contribution to climate change) of car usage on the island. Besides, it permits to extract some important conclusions about the trade-off existing between the need of individual mobility and tourism development in Lanzarote Island.     

Can historical returns-earnings relations predict price responses to earnings news?

The main purpose of this study is to examine the usefulness of pooled and firm-specific returns-earnings models in predicting price responses to future earnings news. The question addresses whether earnings response coefficients (ERCs) (i.e., slope coefficients obtained from regressions of market-adjusted returns on earnings surprises) are helpful in predicting price responses to future earnings surprises. In other words, are historical returns-earnings relations (as captured by ERCs) useful in predicting future returns-earnings relations? Surprisingly, we find that ERCs from firm-specific regressions provide less accurate predictions of price responses to future earnings surprises than ERCs from pooled regressions. In addition, out-of-sample predictions from actual-firm-specific regressions are no more accurate than those from pseudo-firm-specific regressions. This is despite the fact that our pseudo firms are created through random draws of returns-earnings data. Therefore, they have no economic characteristics that extend beyond the period over which the coefficients are estimated.     

Fiscal Policy Shocks in the Euro Area and the US: An Empirical Assessment*

We analyse the impact of fiscal policy shocks in the euro area as a whole, using a newly‐available quarterly data set of fiscal variables for the period 1981–2007. To allow for comparability with previous results on euro‐area countries and the US, we use a standard structural vector autoregressive (VAR) framework, and study the impact of aggregated and disaggregated government spending and net‐tax shocks. In addition, to frame euro‐area results, we apply the same methodology for the same sample period to US data. We also explore the sensitivity of the results to the inclusion of variables aiming to control for underlying financial and fiscal conditions. The main new findings are that: expansionary fiscal shocks have a short‐term positive impact on GDP and private consumption, with government spending shocks entailing, in general, higher effects on economic activity than (net) tax reductions; output multipliers to government expenditure shocks are of similar size in the euro area and in the US; the persistence of a fiscal spending shock is higher in the US than in the euro area, which appears to be related to military spending in the US; and fiscal multipliers have increased over the recent past in both geographical areas.     

Environmental profiles of female apparel shoppers in the Midwest,USA

Abstract Concern for the environment has become an accepted part of our lifestyle. A largely untapped consumer commodity with strong reuse or recycling potential is textiles and apparel. Apparel retailers can benefit from a knowledge of the environmentally concerned apparel shopper and can be instrumental in extending society's appreciation for environmental responsibility. The purpose of this exploratory study was to segment female apparel shoppers into environmentally oriented groups and to profile each group with respect to importance of store attributes, lifestyle activities, general environmental attitudes and textile disposal patterns. Factor analysis, stepwise multiple regression and chi-square analysis were used to analyse data from 113 returned questionnaires. The results indicated that environmental groups can be profiled for textile/apparel products and that each group places emphasis on a different set of store/product attributes when making patronage and purchasing decisions. Profiles of each environmental group with suggestions for retail marketing approaches are provided.     

The value of delays: market- and policy-induced adjustment processes as a motivating factor in dynamic entrepreneurship

Reaching societal consensus on how to deal with new issues, e.g. agreeing on commercial law for e-commerce, takes time. Traditional economics has considered such anomalies as market imperfections. By contrast, this paper suggests perceiving such “delays” as windows of opportunity for entrepreneurs. These considerations from evolutionary economics and entrepreneurship will be explored in a case study on disease management services in Germany. It will become clear that detailed ex ante legal regulation restricts entrepreneurial room for variation. To avoid this loss of knowledge generation, the government should abstain from introducing such premature intervention without having to challenge existing meta-rules.