The size of national health care expenditure is an important research and policy issue. This paper reviews theoretical and empirical analyses of an implied optimal size for a health sector. Various economic theories are explicitly or implicitly invoked, but none is fully satisfactory. Theory...

The essential aim is to reconstruct the original Marx's original theory of money in order to assimilate more recent theories of endogenous money and credit-creation. It will be argued that Marx's original commodity theory of money is quite limited and historically specific to his own era....

This study focuses on public investments and policy reforms for leveraging growth spillovers at the Africaregional level. It reviews first the theory and evidence of knowledge and growth spillovers generally andsecond the evidence in the African context. Given the limited and scattered evidence...