Carbon pricing aims to shift the risk-adjusted returns on investment in favor of green technologies vis-‘a-vis fossil investment, relying on efficient capital markets to redirect investment accordingly. Capital markets with financial frictions can distort this transmission of climate policy. This study analyses the impact of emission taxes on mitigation and low-carbon investment in the presence of financial frictions. We develop a two-sector environmental dynamic stochastic general equilibrium model calibrated to the Euro Area, to simulate an economic transition in line with the EU climate targets. Financial frictions dampen the response of the economy to the carbon tax such that the emissions target will be missed by 11 percentage points. Moreover, the adverse effects of financial frictions increase when climate policy is delayed. We further identify a volume and a risk effect that drive the impact of a financial wealth shock and an uncertainty shock on emission intensity.

We evaluate the global macroeconomic effects of cross-country-coordinated fiscal and monetary policies to counterbalance secular stagnation by simulating a five-region New Keynesian model of the world economy, calibrated to the United States (US), the euro area, Japan, China, and the rest of the world. The model includes investment in research and development (R&D) as a key factor affecting global growth. Our main findings are as follows. First, unfavorable technology developments may have played a nontrivial role in the global growth slowdown. Second, secular stagnation can be more effectively counterbalanced by coordinating global fiscal and monetary measures encouraging R&D accumulation. Third, these coordinated measures provide a larger welfare gain relative to a unilateral fiscal expansion.

We assess the macroeconomic effects of a sovereign restructuring in a small economy belonging to a monetary union by simulating a dynamic general equilibrium model. We compare the macroeconomic outcome of restructuring with scenarios where the debt reduction is achieved via fiscal adjustment. In line with the empirical evidence, we assume that the sovereign debt is held by domestic agents and by agents in the rest of the monetary union; after the restructuring the sovereign borrowing rate increases and the increase is fully transmitted to the domestic households' borrowing rate; and the government cannot discriminate between domestic and foreign agents when restructuring. We also assume that the small economy does not exit from the monetary union after the restructuring and that the restructuring does not have systemic effects on the rest of the union. Our results suggest that the restructuring can imply persistent and large reduction of output, especially if the share of public debt held domestically is large, the private foreign debt is high, and the spread paid by the government and the households does increases.

This paper develops a small-scale DSGE model that embeds a demographic structure within a monetary policy framework. We extend the nonmonetary overlapping-generations model of Gertler and present a small synthesis model that combines the setup of Gertler with a New Keynesian structure, implying that the short-run dynamics related to monetary policy can be compared with that of the standard New Keynesian model. In sum, the model offers a New Keynesian platform that can be used to characterize the response of macroeconomic variables to demographic shocks, similarly to the responses to technology or monetary policy shocks. We offer such characterizations for flexible and sticky price equilibria. Empirically, we calibrate the model to demographic developments projected for the euro area. The main finding is that the projected slowdown in population growth and the increase in longevity contribute slowly over time to a decline in the equilibrium interest rate.