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Outflow Dynamics in Modeling Oligopoly Markets: The Case of the Mobile Telecommunications Market in Poland
Sznajd-Weron, Katarzyna; Weron, Rafal; Wloszczowska, Maja - Volkswirtschaftliche Fakultät, … - 2008
In this paper we introduce two models of opinion dynamics in oligopoly markets and apply them to a situation, where a new entrant challenges two incumbents of the same size. The models differ in the way the two forces influencing consumer choice - (local) social interactions and (global)...
Persistent link: https://www.econbiz.de/10005790235
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Curricula tracking and central examinations: counterbalancing the Impact of social background on student achievement in 36 countries.
Bol, Thijs; Witschge, Jacqueline; Van de Werfhorst, Herman - Volkswirtschaftliche Fakultät, … - 2013
Tracked educational systems are associated with a greater social inequality in children’s educational achievement. Until now research has assumed that the impact of tracking on the inequality of educational opportunity is independent of other educational institutional features. Using data from...
Persistent link: https://www.econbiz.de/10011259202
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Program evaluation of agricultural input subsidies in Malawi using treatment effects: Methods and practicability based on propensity scores
Chirwa, Themba G. - Volkswirtschaftliche Fakultät, … - 2010
Several evaluations have been conducted to assess the impact of agricultural input subsidies in Malawi but have been mostly either descriptive or qualitatively inferred of the intervention impacts on the overall goal of the subsidy program. In most studies cited in this paper their approaches do...
Persistent link: https://www.econbiz.de/10008541484
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Latin American clubs: uncovering patterns of convergence
Blyde, Juan - Volkswirtschaftliche Fakultät, … - 2006
This paper explores the dynamics of convergence in Latin American countries and asks whether there are tendencies for converging to different clubs. The analysis shows clear differences between two groups: a large group of low-to-middle income countries and a small group of rich ountries. The...
Persistent link: https://www.econbiz.de/10008529250
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Can Information Asymmetry Cause Stratification?
Berliant, Marcus; Kung, Fan-chin - Volkswirtschaftliche Fakultät, … - 2010
The empirical literature has found evidence of locational sorting of workers by wage or skill. We show that such sorting can be driven by asymmetric information in the labor market, specifically when firms do not know if a particular worker is of high or low skill. In a model with two types and...
Persistent link: https://www.econbiz.de/10008562640
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Stratification and between-group inequality: a new approach to measurement
Monti, maria; Santoro, alessandro - Volkswirtschaftliche Fakultät, … - 2010
Traditionally, the literature has seen stratification as linked closely to within-group inequality. More recently, some … papers have focused on measuring the impact of stratification on betweengroup inequality. In this paper, we show that when … functions. This approach allows an interpretation of stratification in terms of probabilities and paves the way for a neat and …
Persistent link: https://www.econbiz.de/10008869275