Italian Abstract: L'obiettivo di questo capitolo è il rapporto tra la funzione di costo, che stilizza le ipotesi sui rendimenti di scala, e la funzione d'offerta dell'impresa concorrenziale, singola e aggregata. Useremo la teoria microeconomica standard della produzione allo scopo di...

The aim is to show how and when government insolvency implies a fixed exchange rate regime crisis. To model these issues I try to unify a stylized macroeconomic model with a standard micro agent behavior toward asset pricing. The equilibrium condition between demand and supply of public debt,...

We discover that letting agents pairwise sequentially exchange at "wrong" prices has a robust effect on prices at convergence. If the initial relative price for a good is cheaper than the equilibrium walrasian price due to initial endowments, the initial excess demand effect pushes resource...

Hidden type contracts are examined in their simplest formulation in order to fully prove the role of the single crossing property to eliminate rendundant constraints and to show how this necessary condition constrains the parameters in the case of linear functions. Mechanism design examples are...

We present a general method to detect and extract from a finite time sample statistically meaningful correlations between input and output variables of large dimensionality. Our central result is derived from the theory of free random matrices, and gives an explicit expression for the interval...

This paper characterizes the out-of-equilibrium dynamics of a symmetric, pure exchange economy with two goods and N agents with uniformly distributed preferences and identical endowments. Relaxing the auctioneer assumption, but maintaining a global price rule, sequentially random pairwise...

In this work I clarify VAT evasion incentives through a game theoretical approach. Traditionally, evasion has been linked to the decreasing risk aversion in higher revenue (Allingham and Sandmo (1972), Cowell (1985) (1990)). I claim tax evasion to be a rational choice when compliance is...

We here want to analyze how the imperfect competition mark-up and pass-through are transmitted through the production chain and how they change, as a function of the number of firms existing at each production stage. In order to have an analytical closed form solution, we use the standard linear...

The issue I want to take up here is how networks influence firm business not only from the costs and R&D side, but also from the demand side because of substitution - complementarity effects. In other words firms face networks at every intermediate level that has to meet the market. I will...