Return to work after cancer and pre-cancer job dissatisfaction

We investigate the association between pre-cancer job dissatisfaction and return-to-work probability 3 years after a cancer diagnosis. We use a Danish data set combining administrative data and a survey to breast and colon cancer survivors. We find that the return-to-work probability has a negative correlation with pre-cancer job dissatisfaction with mental demands (where the correlation is driven by the high-educated) and with physical demands and the superior (where the correlation is driven by the low-educated). Educational gradients in the probability of returning to work after cancer are not significantly affected by controlling for pre-cancer job dissatisfaction and pre-cancer ability to work.     

On the law of one price

We consider the standard discrete-time model of a frictionless financial market and show that the law of one price holds if and only if there exists a martingale density process with strictly positive initial value. In contrast to the classical no-arbitrage criteria, this density process may change its sign. We also give an application to the CAPM.Received: November 2003, Mathematics Subject Classification (2000): 60G44JEL Classification: G13, G11Freddy Delbaen: This research was done during the stay of the author at Université de Franche-Comté.     

Precautionary saving in the presence of other risks

Does the sign of the third derivative of the utility function with respect to wealth still govern precautionary saving motives in the presence of a background risk? This article shows that some other properties of the utility function have also to be considered depending on the serial correlation existing between the background risk and the future income risk.     

Do Leveraged Firms Underinvest in Corporate Social Responsibility? Evidence from Health and Safety Programs in U.S. Firms

The explosion of health-related costs in U.S. firms over more than a decade is a huge concern for managers. The initiation of Health and Safety (H&;S) programs at the firm level is an adequate Corporate Social Responsibility (CSR) initiative to contain this evolution. However, in spite of their documented efficiency, firms underinvest in those programs. This appears as a puzzle for health economists. In this paper, we uncover a strong negative relation of financial leverage to the implementation of H&;S programs. The negative impact of debt on investment and CSR activities is generally interpreted as an efficient disciplinary effect of debt on managers. H&;S are particularly well suited to revisit this evidence, given their strong profitability and homogeneity across firms. Very interestingly, the negative effect is stronger for firms with high free cash flows, for which debt is used to prevent overinvestment. This strongly suggests that debt, while disciplining managers, also discourages investments which are valuable both for firms and society.     

Allocation of Labor in Urban West Africa: Insights from the Pattern of Labor Supply and Skill Premiums

Using comparable data from five West African capitals, we assess the rationale behind development policies targeting high rates of school enrollment through the prism of allocation of labor and earnings effects of skills across the formal and informal sectors, and not working. We find that people with high levels of education allocate to the small formal sector, while less educated workers allocate to the informal sector. While high levels of education are given more value in the relatively smaller sectors of salaried employment, observed skills like education appear to be fairly unprofitable in the larger self-employment sector. The fact that only the small formal sector in urban West Africa both seems to absorb highly educated workers and provide high skill premiums may be an important reason for the observed low demand for education and high dropout rates.     

Web Site spill over to email campaigns: The role of privacy,trust and shoppers' attitudes

Email campaign effectiveness is a real challenge for the web industry. According to the literature, privacy concerns, trust and attitude toward a company web site influence consumers' intentions to return to a web site (Chelappa and Pavlou, 2002; Belanger et al., 2002; Eastlick et al., 2006). The objective of this paper is to investigate whether those variables spill over to the email campaign response process. The research framework is an opt-in marketing campaign, with email planned as a loyalty-generating tool and based on a quantitative survey on 330 shoppers of a web retailer. The study results indicated a positive effect of intention to return to the web site on attitudes toward the email campaign; however, consumers' attitude toward a web site had no influence on attitude toward the email campaign in this study. Finally, attitude toward the email campaign had a positive influence on the response process.     

Familiarity and competence diversity in new product development teams: Effects on new product performance

When developing new products, most firms use cross-functional teams, but research on the effect of functional diversity on new product performance returns heterogeneous results. We propose a measure of competence diversity that is more comprehensive than the common functional diversity proxy. Empirical findings, based on a survey of 142 product and sales managers, support the improved predictive validity of our scale. We further observe a mediating effect of the instrumental use of information in the competence diversity–new product performance relationship. Finally, we discuss the moderating effect of familiarity among team members on the relationship between competence diversity and the instrumental use of information. All authors contributed equally to this article and are listed in random order.     

Private Labels,National Brands and Food Prices

We study the relationships between national brand prices and the development of private labels, using home-scanned data from a consumer survey reporting purchases for 218 food products. When the impact of private label development is significant (116 cases out of 218), we observe a positive correlation (89%) between brand price and purchases of private labels. When controlling for changes in product quality, we still find a positive relation between private label development and national brand prices. Thus, the change in the national brand product characteristics only partly explains the increase in the national brand prices. Furthermore, the price reactions of national brands differ according to the type of private labels they face. Finally, we demonstrate that the development of private labels has less effect on the prices of second-tier brands than on the prices of the leading brand.      

Syndicated loans in emerging markets

There has been a considerable expansion of the volume of syndicated loans in emerging markets in the recent years. We provide the first analysis of the determinants of the decision of banks to syndicate a loan on a sample of loan facilities from 50 emerging countries. We show the significant role of loan characteristics and of financial development, banking regulation, and legal institutions, in the decision to syndicate a loan. We support the efforts of authorities to increase banking competition and efficiency, and to implement binding banking regulation on capital requirement to promote the expansion of syndicated loans.     

Storage and Viability of a Fishery with Resource and Market Dephased Seasonalities

In this study we analyse the role of the storageregulation in a fishery's production process when theresource exploited and the market to which theproduction is exported are characterized by seasonaldephased oscillations. For this purpose we built up adynamic model drawn from the French Guyana shrimpfishery example. The underlying objective of the modelis not the maximisation of a given criterion (as wouldbe in the optimal control approach), but merely themaintenance of the fishery's economical viability. Thefundamental principle is here to try to preserve asmany as possible viable control options. Theconditions to achieve and maintain this viability arecaptured in a certain number of constraints. Theanalysis points out periods and situations within theseason where the fishermen must anticipate theevolution of their storage to avoid violating thoseviability constraints. The study also indicates howthe fishery's viability can be ensured even if theexploitation costs exceed the commercial value of thelandings for a finite part of the year. However, whenthe resource's and/or market's oscillations are toolarge, the fishery may be not viable any longer and itappears that the crisis can not be removed byinvesting in larger storage capacities.