The prescription of optimally managing natural resource revenue windfalls by smoothing consumption across generations using an intergenerational sovereign wealth fund that only invests in foreign assets is not appropriate for resource-rich developing economies. It is better for these economies...

A key property of the Aiyagari-type heterogeneous-agent models is that the equilibrium interest rate of public debt lies below the time discount rate. This fundamental property, however, implies that the Ramsey planner's fiscal policy may be time-inconsistent because the forward-looking planner...

This paper addresses two basic issues related to technological innovation and climate stabilisation objectives: i) Can innovation policies be effective in stabilising greenhouse gas concentrations? ii) To what extent can innovation policies complement carbon pricing (taxes or permit trading) and...

The paper presents and estimates an endogenous growth model with public capital. In contrast, however, to recent studies on economic growth and policy, we allow for capital market borrowing by the government. Since the behavior by the government (tax rates, spending and borrowing) does not...

The sustainability of the Nigerian fiscal deficit along with the role of the dynamics of government revenues and spending in adjusting the size of the deficit is examined using annual data from 1961 to 2014. After allowing for structural breaks, the study finds evidence of a cointegration...

Do sovereign wealth funds (SWFs) contribute to Africa's development? This paper assesses the objectives of SWFs (fiscal stabilization, productive investment, intergenerational saving) and discusses alternatives. We argue that fiscal stabilization funds are often necessary, but entail...

Can a large-scale defcit spending program speed up recovery after recession? To answer that question we calibrate a standard neoclassical growth model with US data and assume that an exogenous shock has driven aggregate output far below steady-state level. We calibrate the model such that a...

The output multiplier turns negative before a deficit spending program expires. We show the generality of this unpleasant finding for the standard real business cycle model. We then calibrate an extended model for the US and demonstrate how fiscal stimulus slows down economic recovery from...

We study fiscal spending multipliers of the UK economy using a time-varying parameter factor augmented vector autoregressive (TVP-FAVAR) model. We show that government spending multipliers vary over time and that most of the variation is cyclical: multipliers are typically above one in...

In both developed and developing countries, there are basically two main sources of economic instability: exogenous shocks and inappropriate policies. Exogenous shock (terms-of-trade shocks, natural disasters and capital flow reversals) can throw an economy into disequilibrium and therefore...