We consider dynamic discrete choice models with heterogeneity in both the levels parameter and the state dependence parameter. We first analyse the purchase of full fat milk using a long consumer panel (T 100) on many households. The large T nature of the panel allows us to consistently...

This paper examines the amount of grandfathering needed for an emissions trading scheme (ETS) to have a neutral impact on firm profits. We provide a simple formula to calculate profit-neutral grandfathering in a Cournot model with firms of different sizes and a general demand function. Using...

The Folk Theorem for infinitely repeated games offers an embarrassment of riches; nowhere is equilibrium multiplicity more acute. This paper selects amongst these equilibria in the following sense. If players learn to play an infinitely repeated game using classical hypothesis testing, it is...

We develop a model to describe the behavior of agents who care about receiving their just deserts in competitive situations. In particular we analyze the strategic behaviour of two identical desert-motivated agents in a rank-order tournament. Each agent is assumed to be loss averse about an...

Party activists face a coordination problem: a critical mass (a barrier to coordination) must advocate a single policy alternative if the party is to succeed. The need for direction is the degree to which the merits of the alternatives respond to the underlying mood of the party. An individual`s...

To forecast at several, say h, periods into the future, a modeller faces two techniques: iterating one-step ahead forecasts (the IMS technique) or directly modelling the relation between observations separated by an h-period interval and using it for forecasting (DMS forecasting). It is known...

Using a database of all published articles in economic journals over the last 30 years, we investigate the determinants of scientific co-authorship. We find that, controlling for pair-wise fixed effects and author productivity, a new collaboration emerges faster if the two authors are more...

We consider theoretically and empirically the allocation of time and money within the household. The novelty of our empirical work is that we have a survey which provides information on both time use and the allocation of some goods within the household, for the same households. We can consider...

It is shown that spillovers can enhance private returns to innovation if they feed back into the dynamic research of the original inventor (Internalized spillovers), but will always reduce private returns, if the original inventor does not benefit from the advancements other inventors build into...

The UK`s business R&D (BERD) to GDP ratio is low compared to other leading economies, and the ratio has slowly declined over the 1990s. This paper uses data on large UK firms to analyse the link between R&D and productivity over the 1989-2000 period. Using a production function approach, and a...