So-called "spurious regression" relationships between random-walk (or strongly autoregressive) variables are generally accompanied by clear signs of severe autocorrelation in their residuals. A conscientious researcher would therefore not end an investigation with such a result, but would likely...

In this paper we revisit the evidence recently provided by Philippon (2009) about the relationship among bond market's Q, stock market's Q and aggregate investments for the US. Specifically, we analyze the stability of the relationship between aggregate investment and the two measures of Q...

This paper has two aims. First, we study the impact of oil price variables (change and volatility) on stock market returns under regime shifts in the case of Gulf Cooperation Council (GCC) countries. We employ a Markov regime-switching model to generate regime probabilities for oil market...

This paper uses patent citation data to analyze the quality of university technology across European regions. The empirical analysis draws on a panel dataset of 4580 European university-owned patents classified by 202 European regions over the period 1998–2004. The methodology involves a...

This paper uses the structural change model and wavelet exploratory analysis to re-examine Tobin's q theory of investment. There are two main results. First, wavelet exploratory analysis provides a useful complementary approach to standard confirmatory statistical analysis. Specifically, using...

The paper distinguishes between 'immediate measures of the quality of civil administration' (IM-QCA), such as corruption, and the 'final measure of the quality of civil administration' (FM-QCA), which is the growth performance of an economy. The paper argues that, instead of being monotonic and...

This paper explores whether international differences in rates of return to education reflect variations in the level of risk associated with educational investments. We find no consistent evidence supporting that international differences in the rates of return to education are explained by...

We use time-varying regression to model the relationship between returns in the Shanghai and New York stock markets, with possible inclusion of lagged returns. The parameters of the regressions reveal that the effect of current stock return of New York on Shanghai steadily increases after the...

Heating and cooling degree days are in common use in conditional demand models, billing analysis, and large-scale energy forecasts. The implications of either choosing an ex-ante base temperature, or scanning over the base temperatures, as suggested in Fels (1986) and recommended by some...

The value of a conventional convertible bond is the value of a straight bond plus the value of the option to exchange it for a specified number of shares of common stock. First, I develop a closed-form contingent-claims convertible bond valuation model that quantifies the value of the exchange...