What is an optimal or a sustainable external debt - for a country, region or sector? How should one monitor and evaluate debt to preclude a crisis? We use stochastic optimal control/dynamic programming to derive an optimal debt. The deviation of the actual from the optimal will serve as a...

We use stochastic optimal control-dynamic programming (DP) to derive the optimal foreign debt/net worth, consumption/net worth, current account/net worth, and endogenous growth rate in an open economy. Unlike the literature that uses an Intertemporal Budget Constraint (IBC) or the Maximum...

We use stochastic optimal control-dynamic programming (DP) to derive the optimal foreign debt/net worth, consumption/net worth, current account/net worth, and endogenous growth rate in an open economy. Unlike the literature that uses an Intertemporal Budget Constraint (IBC) or the Maximum...

Sovereign debt crises involve debt restructurings characterized by a mix of face-value haircuts and maturity extensions. The prevalence of maturity extensions has been hard to reconcile with economic theory. We develop a model of endogenous debt restructuring that captures key facts of sovereign...

The wave of sovereign defaults in the early 1980s and the string of debt crises in the decades that followed have fostered proposals involving policy interventions in sovereign debt restructurings. A key question about these proposals that has proved hard to handle is how they in influence the...

The euro-area sovereign debt crisis is receding. Europe is on a recovery path, growth is broad-based and unemployment is falling. One after the other, countries hit hardest by the crisis are exiting their adjustment programmes. However, debt remains high in most countries and future debt crises...

This paper develops a non-stochastic sovereign-debt dynamic model, with increasing cost of capital. It finds that there are parameters for which there is a stable fixed borrowing level, and there are parameters for which the model depicts the case of serial defaulters. Levels of debt that tend...