This paper examines the patenting behavior of firms in an industry characterized by rapid technological change and cumulative innovation. Recent survey evidence suggests that semiconductor firms do not rely heavily on patents to appropriate the returns to R&D, despite the strengthening of US...

This paper examines the (non) equivalance between aid flows and trade preferences as alternative forms of donor assistance in the presence of learning-by-doing externalities in recipient country export production. Using a two-period model based on vanWijnbergen (1985), in which the productivity...

The availability of intra-day data on the prices of speculative assets means that we can use quadratic variation like measures of activity in financial markets, called realised volatility, to study the stochastic properties of returns. Here we provide a statistical basis for realised volatility...

To what extent does the policy of Tony Blair`s government reflect the traditional aspirations of social democracy? In macroeconomic policy the emphasis has been on stability, an understandable response to recent UK economic history, but one which has left sterling dangerously overvalued for an...

Analyses of the Asian crisis have focused excessively on the financial sector, especially the banks. The role of the real sector in exposing the financial system to stress has been under-emphasized. This paper provides a real-sector explanation for the Thai crisis of 1997, demonstrating the role...

This paper tests the efficiency of insurance markets in the Pakistan Punjab by examining how crop choices are affected by the presence of price and yield risk. We estimate reduced-form and structural models of crop choices. Although we cannot reject the hypothesis that village members...

Although difference-stationary (DS) and trend-stationary (TS) processes have been subject to considerable analysis, there are no direct comparisons for each being the data-generation process (DGP). We examine incorrect choice between these models for forecasting for both known and estimated...

We review two proposals for debt forgiveness; the Highly Indebted Poor Country Initiative (HIPC) and the Jubilee 2000 Coalition Initiative (J2K). We then consider the workhorse model of debt forgiveness (Krugman 1988). We show that the workhorse model solution is a sub-optimal contract, where...

We consider whether oil prices can account for business cycle asymmetries. We test for asymmetries based on the Markov switching autoregressive model popularized by Hamilton (1989), using the tests devised by Clements and Krolzig (2000). We select the transformation of the oil price of Lee, Ni...

Unrestricted reduced form vector autoregressive (VAR) models have become a dominant research strategy in empirical macroeconomics since Sims (1980) critique of traditional macroeconometric modeling. They are however subjected to the curse of dimensionality. In this paper we propose...