The hidden nature of causality is a puzzling, yet critical notion for effective decision-making. Financial markets are characterized by fluctuating interdependencies which seldom give rise to emergent phenomena such as bubbles or crashes. In this paper, we propose a method based on symbolic...

The present paper analyzes the forecastability and tradability of volatility on the large S&P500 index and the liquid SPY ETF, VIX index and VXX ETN. Even though there is already a huge array of literature on forecasting high frequency volatility, most publications only evaluate the forecast in...

In view of the established presence of wide deviations of US-listed country ETFs' prices from their net asset values, we study whether feedback trading exists in this category of ETFs and whether it varies with their premiums and discounts. Using a sample of nineteen country ETFs for the...