In endogenous growth theory models have either increasing or constant ranges of product variety. Developments in modem biotechnology however show cases of increasing, decreasing or constant ranges of product variants. We present a simple endogenous growth model allowing for all of these three...

We show empirically that aid given to poor developing countries enhances growth and reduces emigration, once several dynamically interacting effects of aid are taken into account in a system of equations. We estimate equations for net immigration flows as a share of the labour force and Gross...

How much does public capital matter for economic growth? How large should it be? This paper attempts to answer these questions, taking the case of SSA countries. It develops and estimates a model that posits a nonlinear relationship between public investment and growth, to determine the...

We show that the credit crisis of OECD countries has a negative impact on the growth of the world economy according to an error correction model including China and Australia. This causes negative growth effects in poor developing countries. The reduced growth has a direct or indirect impact on...

Strategic environmental policy games are usually based on simultaneous decision making and reach the conclusion that the policy choices are strategic substitutes. Empirical evidence, however, shows that the introduction of a regulatory instrument usually follows a consecutive pattern that is...

We provide regressions for the net immigration flows of developing countries. We show that (i) savings finance emigration and worker remittances serve to make staying rather than migrating possible; (ii) lagged dependent migration flows have a negative sign in the presence of migration stock...

In dealing with a transnational pollutant-emitting duopoly welfare-maximising policy makers face two negative externalities: imperfect competition and unpriced emissions. Strategic environmental policy models show that these externalities involve a trade-off between reducing pollution and...

We incorporate the process of policy diffusion (i.e., the uncoordinated dissemination of policies among countries) into a probabilistic two-country-model of strategic environmental policy. Contrary to the usual setting with simultaneous decision-making, we consider the impact of sequential...

This paper examines the extent to which dependence on primary commodities in Sub-Saharan African(SSA) countries can be explained by low levels of absorptive capacity (the ability to acquire, internalize and utilize knowledge developed elsewhere). We examine the individual and combined effects of...