This paper gives an overview of informetric approaches to studying the science-technology linkage. Informetrics can be understood as the application of mathematical and statistical methods to the information process in science and technology-oriented activities. A number of theoretical...

The ‘entrepreneurial university’ has become commonplace in debates about new ways of knowledge production and the changing relationships between university, industry and government. A rich literature has developed exploring outputs of such activity, most notably ‘patenting’,...

A financial index of the New York stock exchange, the S&P500, is analyzed at 1 min intervals over the 13 yr period, January 84–December 96. We quantify the correlations of the absolute values of the index increment. We find that these correlations can be described by two different power laws...

We study the volatility of the S&P500 stock index from 1984 to 1996 and find that the volatility distribution can be very well described by a log-normal function. Further, using detrended fluctuation analysis we show that the volatility is power-law correlated with Hurst exponent α ≌ 0.9.

The 'entrepreneurial university' has become commonplace in debates about new ways of knowledge production and the changing relationships between university, industry and government. A rich literature has developed exploring outputs of such activity, most notably 'patenting', 'licensing', and...

Academic patents may be a more accurate measure of inventive output generated by academics than university-owned patents. Using Finnish data, a comparative analysis suggests that number of academic patents is higher not only than the number of university-owned patents but also than patents...