This paper discusses an empirical model of UK GDP growth in the context of the COVID-19 pandemic. The model estimates that social distancing and lockdown restrictions reduced, on average, annual UK growth by 9.7 percentage points compared to the scenario of no government action. At the other...

I discuss some of the challenges and possible responses of the economics and finance profession following the 2008-2009 financial crisis and the COVID-19 pandemic. I do this in the context of three examples. The first example draws on the Bank of England’s forward guidance on interest rates by...

Deriving a functional form for a series of prices over time is difficult. It is common to assume some linearly estimable form for prediction purposes. While this can produce accurate short run forecasts it fails to identify longer trends and patterns that may exist in financial data....

The volatility of stock prices is difficult to explain within the confines of rational pricing models. Changes in prices have become permanent at both the individual and the aggregate level. Therefore, when keeping the hypothesis of a rational behavior of agents, we need to give a new...

Using the Tsay (1988) outlier identification methodology on daily log-returns of 16 commodity spot price series and 25 commodity index series, this study assesses the impact significant and unexpected news announcements had on volatility between January 1, 1997 and December 31, 2007. Results...

Deriving a functional form for a series of prices over time is difficult. It is common to assume some linearly estimable form for prediction purposes. While this can produce accurate short run forecasts it fails to identify longer trends and patterns that may exist in financial data....

This paper investigates the time-varying spillovers among cryptocurrency, green and fossil fuel investments. Using a TVP-VAR network connectedness model, we find that the spillovers among cryptocurrency, green and fossil fuel assets vary over time and that they are more pronounced during crisis...

Using high-frequency intraday data, we construct, test and model seven new realized volatility estimators for six international equity indices. We detect jumps in these estimators, construct the jump components of volatility and perform various tests on their properties. Then we use the class of...