We present a model of vertical product differentiation and exit where a domestic and a foreign firm face fixed setup costs and quality-dependent costs of production and compete in quality and price in the domestic market. Quality-dependent costs are quadratic in qualities, but independent of the...

We present a model of vertical product differentiation and exit where a domestic and a foreign firm face fixed setup costs and quality-dependent costs of production and compete in quality and price in the domestic market. Quality-dependent costs are quadratic in qualities, but independent of the...

This paper makes the case that the biomedical workforce in the United States is characterized by positive feedbacks. The paper begins by setting out background information on (1) the way in which research is structured in the biomedical sciences; (2) the reward structure among biomedical...

Scientific research has properties of a public good; there are few monetary incentives for individuals to undertake basic research and the conventional wisdom is that the market, if left to its own devices, would under- invest in research in terms of social benefits relative to social costs. Thus...

What explains the cross section of expected returns for the 25 size/value Fama-French portfolios? It is found that modelling time-varying betas is important to explain the cross-section of expected returns, as well as to comply with the time series restriction on Jensen-alpha. Support for a...

This paper examines a new model of credit risk measurement, the Variance Gamma- Merton one, which seems to be adequate for describing single default occurrence and default correlation in turbulent times. It is based on the notion of business time. Business time runs faster than calendar time...

This paper offers a new and robust model of the emergence and persistence of cooperation. In the model, interactions are anonymous, the population is well-mixed, and the evolutionary process selects strategies according to material payoffs. The cooperation problem is modelled as a game similar...

The objectives of this paper could be brought to three. First, a methodological one, to explain how economic knowledge disseminates and what its channels are, as well as the basic transmission mechanisms of economic theory in Bulgaria after the disintegration of the socialist bloc. Second, a...

There are two aspects through which an economic policy can influence the economic situation – monetary and fiscal. Monetary and fiscal policies have different and sometimes controversial goals to achieve by means of specific instruments. While the mission of central banks is generally price...

International taxation rules for multi- national enterprises (MNEs) prescribe that international prices for goods and services between different subsidiaries – and therefore incomes of these subsidiaries - must be comparable to those set between independent international firms for the purpose...