We present a simple two(-country) by two(-good) differental game model of international trade in which the governments of the two countries play a tariff-setting game. We explicitly derive a unilateral optimum tarifff rate and then a Markov-perfect equilibrium pair of tariff strategies...

The Frankel-Romer-Lucas theory of endogenous growth rests on the assumption of knowledge-based externalities and price-taking representative households. It is argued that, in a context of long-run growth, these assumptions are mutually incompatible (that representative households will co-operate...

We extend the Barro (1990) model of endogenous growth to a two-sector one which consists of pure consumption and investment goods. It is possible that the extended version has a unique balanced growth rate such that for given initial values of state variables, (i) the extended model economy...

We offer a new proof of the maximum principle, by using the envelope theorem that is frequently used in the standard microeconomic theory. Copyright Springer-Verlag Berlin Heidelberg 2003

The Hicks-Ikema theorem, that a uniform expansion of a trading country's production set must benefit its trading partner if the preferences of the expanding country are homothetic, has been demonstrated under assumptions of the Lerner-Samuelson kind. It is shown here that the theorem remains...

This paper presents a pair of new equivalent conditions for a given n x n matrix of distributive shares to satisfy the Stolper-Samuelson criterion. Specifying n as four and making use of barycentric coordinates, the author gives geometric characterization to the equivalent conditions. Copyright...