This paper offers a unified framework to explore both the static and dynamic welfare effects of trade and multinational production MP in the presence of firm-specific productivity heterogeneity. The model captures the dynamic effects by allowing for RD spillovers between firms in a framework of...

A major international transmission channel of productivity increases is trade in intermediate products and services. This paper analyses international spillovers at the industry level and for the first time investigates effects from the services sector in this framework. The analysis makes use...

The paper adds to the scattered empirical evidence on the role of obstacles to innovation in a three-fold way. First, we correct for the usual sample selection bias by filtering out firms not interested in innovation from 'potential innovators'. We then analyse the impact of obstacles on the...

The identification of age, cohort (vintage), and period (year) effects in a panel of individuals or other units is an old problem in the social sciences, but one that has not been much studied in the context of measuring researcher productivity. In the context of a semi-parametric model of...

We derive the central differential equation of the neoclassical growth model for the case of a CES (constant elasticity of substitution) production function with perfect capital movement in terms of the debt/GDP ratio and estimate it in several ways for the United States and in a later step the...

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 GDP per...

This paper investigates the effects of connectivity charges (communication costs) on bilateral exports in Sub Saharan Africa (SSA). Data from 19 exporter countries was used together with communication costs data in a gravity model of trade setup. The export data derive from the IMF Direction of...

In this paper, we combine the export-led and import-led growth hypotheses in a growth model in which the importation of foreign capital goods and the demand elasticities of own export products explain the growth opportunities and the technical progress of developing countries. This model, based...

The debate about the Prebisch-Singer thesis has focussed on primary commodities with some extensions to manufactures. As we think that the link between the terms of trade and longrun development, growth and convergence is the ability of exports to enhance investment through importing capital...

This paper is a commentary on a project application of telemedicine to alleviate primary health care problems in Lundazi district in the Eastern province of Zambia. The project dubbed 'The Virtual Doctor Project' will use hard body vehicles fitted with satellite communication devices and modern...