This study investigates the relationship between the volatility of stock market indexes and the trading volumes of their Exchange Traded Funds (ETFs). Using both OLS and GARCH approaches we demonstrate that the contemporaneous trading volume of S&P 500 ETFs is a key determinant of S&P 500...

This paper develops a novel approach to information-based securities trading by characterizing the hidden state of the market, which varies following a Markov process. Extensive simulation demonstrates that the approach can successfully identify market states and generate measures of...

This paper develops a novel approach to information-based securities trading by characterizing the hidden state of the market, which varies following a Markov process. Extensive simulation demonstrates that the approach can successfully identify market states and generate dynamic measures of...

Both the theory and practice of using hedonic regressions to quality adjust inflation estimates are implicitly developed for monopolistic competitive markets. We demonstrate conditions required for consistent OLS estimation of hedonic regression for an oligopoly. To reflect firm heterogeneity,...