The Mundell-Fleming model of international macroeconomic originated in the early 1960s and has been extended during the ensuing quarter century. This paper develops an exposition that integrates the various facets of the model and incorporates its extensions into a unified analytical framework. Attention is given to (1) the distinction between short-run and long-run effects of policies, (2) the implications of debt and tax financing of government expenditures, and (3) the role of the exchange rate regime in this regard. By identifying the key mechanisms operating in the model, the exposition clarifies the model’s limitations and facilitates comparison with other, more current approaches.
This paper assesses the macroeconomic implications of scaling up aid for Benin in line with the Gleneagles commitment to double aid to poor countries over the next three years to reach $85 per capita by 2010 and keep it at that level thereafter. The analysis suggests that the additional aid inflows can be accommodated under Fund-supported programs without major disruptions to macroeconomic stability, provided the inflows are highly concessional and used effectively. There are, however, significant risks that the impact on growth and poverty reduction of the additional aid inflows could fall short of expectations, given Benin's limited absorptive and administrative capacity.