The recent financial crises, especially the debt crisis in Asia, have led to questions su ch as: what are their causes, what is an excessive debt and how vulnerable is an economy to external shocks? We develop an economic model of international finance and debt based upon two sources of...

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...

There have been criticisms of debt sustainability analysis in general, including the IMF's own evaluation of the usefulness of its debt sustainability methodology (e.g., IMF, 2017). This paper's focus is narrow. On the basis of theoretical arguments and empirical evidence, it argues that the...

The Target liabilities of the GIPS countries (Greece, Ireland, Portugal and Spain) amounted to314 billion euros in March 2011. They measure the additional central bank money that their corresponding National Central Banks (NCBs) have loaned in excess of the money needed to cover their domestic...

The fragmentation of production across borders allows firms to make and export final goods, or to perform only intermediate stages of production by processing imported inputs for re-exporting. We examine how financial frictions affect companies’ choice between processing and ordinary trade -...

We analyze current account imbalances through the lens of the two largest surplus countries; China and Germany. We observe two striking patterns visible since the 2007/8 Global Financial Crisis. First, while China has been gradually reducing its current account surplus, Germany’s surplus has...

In this paper, we provide evidence that expanding firms tend to serve new markets which are geographically close and culturally related to their prior export destinations. We quantify the impact of this spatial pattern using a Chinese firm-level data set. To ensure an exogenous set of potential...

During the past three decades, Japan s current account experienced five large swings. The yen appreciated considerably in periods when the current account boomed, and it depreciated whenever Japan s external performance weakened. However, there has always been a certain lag in the adjustment of...

We offer a new methodology for the assessment of public debt sustainability in a stochastic economy when sovereign default taken into account. The default threshold differs from the no-Ponzi condition and depends on the post-default debt recovery rule. We distinguish sustainability and...

The public debt overhang spread across advanced countries, and the reform of the Stability and Growth Pact in the Euro Zone, have revived the polarization between those who think that debt is always good and those who think that debt is always bad. This paper presents a normative model of...