Using VAR analysis on US data, we show that unanticipated fiscal expansions boost private consumption and business formation. Models with an extensive investment margin, i.e. endogenous firm and product entry, have difficulties explaining these two phenomena simultaneously. Considering different...

While rigidities in nominal factor costs imply a finite slope in the aggregate supply curve, this paper asks, “Do rigidities increase if there is a more competitive economy?” Several authors claim that real rigidities of monopoly power reinforce nominal rigidities due to price adjustment...

The paper uses a new condition of consistency along with the concept of fuzzy mathematics to explain the choice problem. It gives a new method of deriving the individual and aggregate demand function of any economic object without considering any type of neoclassical utility function. Moreover,...

This paper proposes a model of efficiency wage with endogenous workers flows in interaction with imperfect competition on the product markets. Subject to economy-wide shocks, firms hire and fire workers thus generating a certain turnover. We show that the intensity of this turnover negatively...

We study the implications of product market competition and investment for price setting, wage bargaining and thereby for equilibrium unemployment in an economy with product and labour market imperfections. We show that intensified product market competition will reduce equilibrium unemployment,...

In this paper we study how promoting product market competition by reducing mark-ups or by increasing productivity are able to complement labor market reforms. We use a simple general equilibrium model with different types of labor. The bottom-line of the paper is that product market reforms...

We study the implications of product and labor market imperfections for equilibrium unemployment under both exogenous and endogenous capital intensity. With endogenous capital intensity, stronger labor market imperfections always increase equilibrium unemployment. The relationship between the...

This paper is a contribution to the debate on policy complementarity in relation to deregulation in the product and labour markets. We develop a model of dynamic efficiency wages and monopolistic competition. Whereas most of the literature points toward the gains associated to an increase in...

Standard economic wisdom generally stresses the benefits of increased competition on the product market. This paper proposes a model of monopolistic competition with an endogenous determination of workers' flows in and out of unemployment, where wages are determined according to an efficiency...