Multivariate Wold decompositions: a Hilbert A-module approach

Decisions in Economics and Finance - Orthogonal decompositions are essential tools for the study of weakly stationary time series. Some examples are given by the classical Wold decomposition of...     

The Assessment of Exclusive Contracts: The Competition Case Against Computicket in South Africa

Review of Industrial Organization - This article reviews an abuse of dominance decision against the main outsourced ticketing firm in South Africa. The decision of the Competition Tribunal in...     

A balance-sheet approach to fiscal sustainability

This paper proposes an alternative methodology to assess fiscal sustainability. Our balance-sheet approach (BSA) relies on estimating separately all of a government's assets and liabilities as opposed to focusing only on the burden of explicit liabilities. In our approach, assets are primarily the present discounted value of taxes, and liabilities include explicit liabilities but also the present discounted value of expenditures. Using the value of assets and liabilities, we compute the government's balance sheet, and therefore net worth. We then evaluate the response of net worth to growth, commodity prices or real exchange rate shocks. By computing a value for the government's net worth, our methodology allows an assessment of fiscal sustainability that is less reliant on the analyst's assumptions than traditional debt sustainability analysis (DSA).