Rabah Arezki, Yang Liu, 30 September 2021

Covid-19 has further exposed the growing interdependence between advanced economies and emerging markets. Most of the existing research on cross-border spillovers has focused on the spillover effects from advanced economies to emerging markets. This column shows that spillovers from emerging markets to advanced economies over the past 25 years are about a fifth of those running in the opposite direction, and have increased significantly over time because of the evolving interdependence between these blocks. 

Bernard Caillaud, Gabrielle Demange, 06 October 2015

The standard economic argument in favour of a uniform carbon price is efficiency – all agents face the same marginal cost of pollution. Such a price can be achieved either by an emissions trading (cap-and-trade) system or by imposing a tax. This column argues that whether a uniform policy or a mixture of both is optimal depends on a few factors, and most importantly on the nature of stochastic shocks affecting the economy.

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