This paper analyzes simultaneous exceedances (coexceedances) of several stock index returns for different thresholds with a focus on the Asian crisis in 1997. We introduce a new concept of computing and estimating time-varying coexceedances and usethe quantile regression model to analyze...

Contagion tests that are based on the correlation coefficient assume constant correlations and symmetric impacts of shocks. Moreover, they neglect volatility as a potential factor of contagion. We show that such tests can be misleading when correlations are time-varying and volatility is...

This paper uses a simple model based on the board game Monopoly to analyze the drivers of house prices and wealth inequality. Simulations show that the inequality depends on the timing and distribution of home ownership, house price growth and wage growth. An extension of the classical game with...

The volatility of equity returns generally exhibits an asymmetric reaction to positive and negative shocks. Economic explanations for this phenomenon are leverage and a volatility feedback effect. This paper studies the volatility of gold and demonstrates that there is an inverted asymmetric...

This paper analyses the share prices of the world's largest car manufacturers with a focus on the sensitivity to the price of lithium. Most car manufacturers display no relationship with the price of lithium except seven manufacturers, of which six are Chinese and exhibit strong positive lithium...

This paper analyzes if Bitcoin enhances investment portfolios both financially and in terms of lower carbon emissions. We show that the addition of Bitcoin to a diversified equity portfolio does improve the risk-return relationship of the portfolio but not its sustainability by reducing the...

Insider trading laws are designed to ensure a level-playing field and trust in financial markets at the expense of less efficient markets. This paper argues that insider trading laws fail to ensure a level-playing field and instead facilitate fraud and undermine trust and fairness. We use a...

There is a well documented asymmetric return - volatility effect of equity returns, that is, negative shocks increase volatility by more than positive shocks. This paper analyzes the return - volatility relationship of commodity price changes and finds an inverted asymmetric effect with a...

This article analyzes asymmetric volatility effects for the 20 largest cryptocurrencies and reports a very different asymmetry compared to equity markets: positive shocks increase the volatility by more than negative shocks. We explain this atypical effect for financial assets with trading...

We investigate the price reaction of listed companies in response to blockchain-related announcements. The average abnormal return based on a global sample of 713 firm announcements is approximately 5% on the announcement day, with significantly higher returns for U.S. firms, smaller firms and...