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van Ours, Jan - Tilburg University, Center for Economic Research - 2005

cannabis and cocaine.For females no negative effects of drug use on the employment rate are found.For males there is a negative … correlation between past cannabis and cocaine use and employment. However, after correcting for the effect of unobserved personal … characteristics there is no negative effect of cannabis use or cocaine use on the employment status of males. …

Persistent link: https://www.econbiz.de/10011091004

Ecstacy and cocaine : Patterns of use among prime age individuals in Amsterdam

van Ours, Jan - Tilburg University, Center for Economic Research - 2005

cocaine.The information was collected in surveys in 1994, 1997 and 2001.The analysis shows that the use of ecstasy and cocaine … use cocaine are also more likely to use ecstacy.Whether or not an individual starts using ecstasy or cocaine is highly age … use of cocaine. …

Persistent link: https://www.econbiz.de/10011091450

Dynamics in the Use of Drugs

van Ours, Jan - Tilburg University, Center for Economic Research - 2005

C41; D12; I19;

Persistent link: https://www.econbiz.de/10011092110

A New Way to Measure Competition

boone, jan - Tilburg University, Center for Economic Research - 2004

This paper introduces a new way to measure competition based on firms' profits.Within a general model, we derive conditions under which this measure is monotone in competition, where competition can be intensified both through a fall in entry barriers and through more aggressive interaction...

Persistent link: https://www.econbiz.de/10011091528

Competition

boone, jan - Tilburg University, Center for Economic Research - 2000

Competition has been modelled in the literature in a number of ways.What do these different parametrizations of competition have in common?For instance, it turns out that it is not always the case that a rise in competition reduces price cost margins, industry wide profits or concentration.All...

Persistent link: https://www.econbiz.de/10011092319

Perceived Organisational Support and Profitability

Graafland, Johan; Rutten, B. - Tilburg University, Center for Economic Research - 2004

This paper investigates the impact of perceived organizational support (POS) on performance.We predict that POS will be reciprocated by positive discretionary employee behavior, which in turn has a positive impact on performance.Empirical research on a sample of Dutch construction companies...

Persistent link: https://www.econbiz.de/10011092550

An Algorithm for the Nucleolus of Airport Profit Problems

Brânzei, R.; Inarra, E.; Tijs, S.H.; Zarzuelo, J. - Tilburg University, Center for Economic Research - 2003

Airport profit games are a generalization of airport cost games as well as of bankruptcy games.In this paper we present … a simple algorithm to compute the nucleolus of airport profit games.In addition we prove that there exists an unique … consistent allocation rule in airport profit problems, and it coincides with the nucleolus of the associated TU game. …

Persistent link: https://www.econbiz.de/10011092938