Fabrizio Zampolli

The Future of Public Debt: Prospects and Implications

Since the start of the financial crisis, industrial country public debt levels have increased dramatically. And they are set to continue rising for the foreseeable future. A number of countries face the prospect of large and rising future costs related to the ageing of their populations. In this paper, we examine what current fiscal policy and expected future age-related spending imply for the path of debt/GDP ratios over the next several decades. Our projections of public debt ratios lead us to conclude that the path pursued by fiscal authorities in a number of industrial countries is unsustainable. Drastic measures are necessary to check the rapid growth of current and future liabilities of governments and reduce their adverse consequences for long-term growth and monetary stability.

Household Debt, House Prices and Consumption in the United Kingdom: A Quantitative Theoretical Analysis

Household debt and house prices in the United Kingdom rose substantially between 1987 and 2006. In this paper we use a calibrated overlapping generations model of the household sector to examine the extent to which changes in demographics, lower inflation, and a lower long-run real interest rate may explain the build-up of debt and the rise in house prices over that period. Our model suggests that lower real interest rates were particularly important. If households expected lower real interest rates to persist, then the model can more than explain the rise in debt and can explain most of the rise in house prices. However, the model leaves a puzzle because it predicts that an unanticipated fall in real interest rates should lead to a consumption boom that did not materialise in the data.