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AbstractWe develop an endogenous growth model with North–South interactions, monetary policy, and a multi-dimensional role for fiscal policy. To boost economic performance, the government of the less developed country subsidizes R&D and intermediate goods production. Besides, to account for the effects of excessive public debt, we introduce a negative externality on productivity and a risk premium effect. Our findings reveal that the steady-state growth rate of both economies depends positively on the subsidies in the South and negatively on the public debt's externality on productivity and the risk premium affecting the indebted economy. Additionally, public debt externalities increase the equilibrium wage inequality, making it more significant in the South. To minimize these effects, both countries can agree to mutualize their debts to overcome the risk premium. Then, the economy's steady-state growth rate would increase in both countries. Finally, several policy implications were retrieved.

The paper looks at a model of directed technical change in an environmental-economics context. Firms can do conventional or 'green' R&D or they can abate emissions at the end of pipe. The paper has two main foci. On the one hand, it investigates the impact of environmental regulation on the allocation of resources to conventional R&D, green R&D, and end-of-pipe abatement. On the other hand, it addresses the question whether stricter emission standards should be used to support green R&D and/or economic growth.

AbstractWe develop a directed technical change growth model with both public and private sectors. Due to the COVID-19 pandemic, labor productivity and R &D activity in the private sector are considered to have a negative shock. The former shock causes an immediate fall in the private premium, which can be reversed during transition dynamics towards the steady-state. Fiscal policies are materialized in direct and indirect R &D subsidies, and the monetary policies consist of relaxing cash-in-advance restrictions. An appropriate fiscal policy, together or not with monetary policy, can restore the pre-shock situation. Monetary policy is reinforced in the presence of monetary-transaction costs on consumption and of money-in-the-utility function.

The paper analyzes unequal regional development in Kazakhstan. Applying the nonlinear least squares method in presence of spatial correlation we estimate the convergence rate of wages across Kazakh regions for the period 2003-2009. The estimated convergence rate is about 3% which is somewhat higher than estimates obtained for the USA and Europe. At the same time there is slight divergence in the GRP per capita. It is argued that convergence in wages which coincides with divergence in the per capita GRP is consistent with the endogenous growth model where profit maximizing firms choose the capital intensity of the technology. This implies that the inequality between regions will only exacerbate and the central government may wish to invest more in low-growth regions to alleviate disproportional development.