Various approaches used in Agent-based Computational Economics (ACE) to model endogenously determined interactions between agents are discussed. This concerns models in which agents not only (learn how to) play some (market or other) game, but also (learn to) decide with whom to do that (or not).

Similar to many sub-Saharan African countries, Sudan has inherited a dual economy in the immediate post-independence era where a large agriculture-based rural traditional sector coexisted with a small non-agricultural modern sector. This functional dualism remained until the first oil shipment...

Undesirable outputs are often produced together with desirable outputs. This joint production of good and bad outputs brings about a difficulty for productivity measurement. Here we introduce a directional distance function and use it as a component in a new productivity index. This index, as an...

Reply to professor Vanek's comment on Bogetic's paper in the same issue of the Economic Analysis and Workers' Management.

I show that the Pigovian solution to a simple externalities problem and a particular Coasian solution can be viewed as competitive equilibria from different initial endowments. I also describe the ``compensation mechanism,'' a mechanism that implements either the Coasian or Pigovian solution as...

This paper studies efficient and egalitarian allocations over a single heterogeneous and infinitely divisible good. We prove the existence of such allocations using only measure-theoretic arguments. Under the additional assumption of complete information, we identify a sufficient condition on...

We analyze three sets of income data: the US Panel Study of Income Dynamics (PSID), the British Household Panel Survey (BHPS), and the German Socio-Economic Panel (GSOEP). It is shown that the empirical income distribution is consistent with a two-parameter lognormal function for the low-middle...

Models of household consumption used to estimate the relative needs of people living in different family types need to take account of economies of household size, price-like substitution effects and the allocation of consumption among the individuals of the household. No existing estimation...

We investigate the shape of the Italian personal income distribution using microdata from the Survey on Household Income and Wealth, made publicly available by the Bank of Italy for the years 1977-2002. We find that the upper tail of the distribution is consistent with a Pareto power-law type...

In this note I show that pratically any increasing function is the equilibrium bidding function of a symmetric first-price auction. It is like a Sonnenschein-Mantel-Debreu for auctions