Semiparametric Estimation of a Duration Model

Within the framework of the proportional hazard model proposed in Cox (1972), Han and Hausman (1990) consider the logarithm of the integrated baseline hazard function as constant in each time period. We, however, proposed an alternative semiparametric estimator of the parameters of the covariate part. The estimator is considered as semiparametric since no prespecified functional form for the error terms (or certain convolution) is needed. This estimator, proposed in Lewbel (2000) in another context, shows at least four advantages. The distribution of the latent variable error is unknown and may be related to the regressors. It takes into account censored observations, it allows for heterogeneity of unknown form and it is quite easy to implement since the estimator does not require numerical searches. Using the Spanish Labour Force Survey, we compare empirically the results of estimating several alternative models, basically on the estimator proposed in Han and Hausman (1990) and our semiparametric estimator.     

National Determinants of Family Firm Development? Family Firms in Britain, Spain, and Italy in the Nineteenth and Twentieth Centuries

We provide here a complement to recent work on family business,which has demonstrated the need to go beyond the generic definitionof the family firm to place personal capitalism in an appropriateinstitutional, historical, and cultural framework. By focusingon the nineteenth- and twentieth-century experiences in Britain,Spain, and Italy, we challenge the notion that in the nineteenthand twentieth centuries there was anything so simple as a Mediterraneanmodel for family business. Rather, we demonstrate the need toconsider family businesses in national and regional contextsif we are to understand their various capabilities and characteristics.We use similarities and differences in the experiences and responsesof families and firms in the three countries to support thisclaim.     

Returns to Regionalism: An Analysis of Nontraditional Gains from Regional Trade Agreements

The past decade has witnessed a renewed interest in regionaltrade agreements, with many policymakers and academics seemingto believe that these provide more than the traditional gainsfrom trade. This article examines several possible benefitsthat regional trade agreements may confer on their partners,including credibility, signaling, bargaining power, insurance,and coordination. It assesses the necessary conditions for eachpossible channel to work, gives stylized examples of specifictypes of policy where the benefit might be applicable, examinescases where the explanation might be relevant, and discussestheir overall plausibility. It concludes by examining the NorthAmerican Free Trade Agreement and the Europe Agreements.     

Restoring Wetlands Through Wetlands Mitigation Banks

This paper offers the first economic analysis of wetlands mitigation banks. The banks are a new alternative for restoration of wetlands by developers before receiving regulatory approval for future development of wetlands in the same watershed. A stochastic optimal control model is developed which incorporates ecological uncertainty of wetlands restoration. The model helps in examining the decisions of how much to invest in a wetlands mitigation bank. The model is calibrated with data from California bioeconomic parameters. Numerical simulation of the model provides a sensitivity analysis of how model parameters of restoration costs, stochastic biological growth, interest rate, and the market value of credits affect the trajectory of investment and the optimal stopping state of wetlands quality when the investment ends. The analysis reveals that restoration of the whole site will occur when there is a reduction in restoration costs, an increase in biological uncertainty or an increase in the value of wetlands credits. Continued restoration is harder to justify with a higher interest rate.     

Market efficiency in the Spanish derivatives markets: An empirical analysis

This paper analyzes Granger caUSAlity between daily prices of the Spanish stock index (Ibex 35) and its futures contract using Johansen cointegration methodology. The study differentiates between short-run and long-run caUSAlity. The empirical results prove that, in the short run, the futures price causes the spot price. However, the opposite is not true. On the other hand, long-run caUSAlity is embodied in the response of futures prices after deviations from the long-run equilibrium. These results say that during the period of study, the Spanish futures market behaved as an efficient market.     

The expectations management approach to stabilization in Argentina during 1976–1982

The main goals of the economic authorities in Argentina during 1976–1982 were to open the economy to foreign trade and to reduce inflation. The stabilization plan relied first on the control of money and wages, later on a preannounced schedule of a declining future exchange rate—actions that were supposed to be accompanied by a fiscal policy to reduce the public sector deficit.The stabilization plan was abandoned in the first quarter of 1981 for two reasons: an important financial crisis during the second quarter of 1980, and a deterioration of fiscal discipline that could no longer assure coherence between the deficit and the preannouncement schedule. The paper also argues that the political situation in Argentina undermined the credibility of the reforms and particularly the stabilization attempts. With the abandonment of the stabilization schedule, new commercial and exchange rate measures were gradually introduced, reversing the policy of opening the economy to foreign trade. The financial reform was reversed in 1982 with the virtual nationalization of deposits.The experience of Argentina suggests that capital inflows responding to interest rate arbitrage play a fundamental role in the short run dynamics of real exchange rates. They can promote the adjustment, or they can precipitate a run on the foreign exchange market. The lesson is that a stabilization plan based on the preannouncement of future exchange rates is highly risky for an economy like Argentina's.     

Using self-referencing to explain the effectiveness of ethnic minority models in advertising

Advertising research has generally not gone beyond offering support for a positive effect where ethnic models in advertising are viewed by consumers of the same ethnicity. This study offers an explanation behind this phenomenon that can be useful to marketers using self-reference theory. Our experiment reveals a strong self-referencing effect for ethnic minority individuals. Specifically, Asian subjects (the ethnic minority group) self-referenced ads with Asian models more than white subjects (the ethnic majority group). However, this result was not evident for white subjects. Implications for academics and advertisers are discussed.     

Evaluating wind-following and ecosystem services for hydroelectric dams in PJM

Hydropower can provide inexpensive, flexible fill-in power to compensate for intermittent renewable generation. Policies for hydropower dams maintain multiple services beyond electric generation, including environmental protection, flood control and recreation. We model the decision of a hydroelectric generator to shift some of its power production capacity away from the day-ahead energy market into a “wind-following” service to smooth the intermittent production of wind turbines. Offering such a service imposes both private and social opportunity costs. Since fluctuations in wind energy output are not perfectly correlated with day-ahead energy prices, a wind-following service will necessarily affect generator revenues. Seasonal wind patterns produce conflicts with the goal of managing rivers for “ecosystem services”—the maintenance or enhancement of downstream ecosystems. We illustrate our decision model using the Kerr Dam in PJM’s territory in North Carolina. We simulate the operation of Kerr Dam over a three-year period that features hydrologic variability from normal water years to extreme drought conditions. We use an optimization framework to estimate reservation prices for Kerr Dam offering wind-following services in the PJM market. Wind-following may be profitable for Kerr Dam at low capacity levels during some time periods if ecosystems services are neglected and if side payments, or reserves-type payments, are provided. Wind-following with ecosystem services yields revenue losses that typically cannot be recovered with reserves market payments. Water release patterns are inconsistent with ecosystem-services goals when Kerr Dam dedicates significant capacity to wind-following, particularly in drought years.     

Relations between organizational commitment and focal and discretionary behaviours

The purpose of this paper is to analyse the relations between organizational commitment (OC) dimensions and two focal and discretionary behaviours (intention to stay and organizational citizenship behaviour). Drawing on a sample of 310 Spanish employees of small services firms, this research reveals that in contrast to recent findings that detected a nonlinear (inverted U-shaped) relationship between continuance commitment and intention to stay, the form of the relationships between OC dimensions and the proposed outcomes is linear rather than nonlinear. Furthermore, when dividing continuance commitment into two subcomponents, the research results indicate that the dimension associated with commitment based on few existing employment alternatives is significantly, negatively and linearly related to intention to stay and organizational citizenship behaviour. This suggests that the three-component model of OC suffers from a conceptual inconsistency, which is further discussed.