Liquidity, time‐varying betas and anomalies: Is the high trading activity enhancing the validity of the CAPM in the UK equity market?

2020 ◽  
Author(s):  
Javier Rojo‐Suárez ◽  
Ana Belén Alonso‐Conde ◽  
Ricardo Ferrero‐Pozo
Keyword(s):  
Equity Market ◽  
Time Varying ◽  
Trading Activity ◽  
The Uk

Market reaction to scheduled and unscheduled news announcements under varying economic conditions

2020 ◽  
Author(s):  
◽  
Parveshsingh Seeballack
Keyword(s):  
Stock Returns ◽  
Risk Premium ◽  
Implied Volatility ◽  
Equity Market ◽  
Economic Conditions ◽  
Time Varying ◽  
Equity Risk Premium ◽  
Macroeconomic News ◽  
Equity Risk ◽  
News Announcements

The unifying theme of this dissertation is the study of the role of macroeconomic news announcements in the context of the equity market. We focus on two important areas of the asset pricing theory, namely price discovery and equity risk premium forecasting. Chapter 2 investigates the time-varying sensitivity of stock returns to scheduled macroeconomic news announcements (MNAs) using high-frequency data. We present new insights into how efficiently stock returns incorporate the informational content of MNAs. We further provide evidence that the stock market response to MNAs is cyclical, and finally we conclude Chapter 2 with an investigation into the factors driving the time-varying sensitivity of stock return to MNAs. Chapter 3 investigates the time-varying sensitivity of stock returns in the context of unscheduled macroeconomic news announcements using high-frequency data. We investigate the speed and persistence in stock returns’ response to unscheduled macro-news announcements, and whether the reactions are dependent on the state of the economy, or general investor sentiment level. Combined, Chapters 2 and 3 provide interesting insights into how equity market participants react to the arrival of scheduled and unscheduled macro-announcements, under varying economic conditions. Chapter 4 focuses on equity risk premium forecasting. We investigate the predictive ability of option-implied volatility variables at monthly horizon, under varying economic conditions. We innovate by constructing monthly announcement and non-announcement option-implied volatility predictors and assess whether the monthly announcement option-implied volatility predictors contain additional information for better out-of-sample predictions of the monthly equity risk premium. Each of the three empirical chapters explores a unique aspect of the asset pricing theory in the context of the U.S. equity market.

Internet gambling stock returns: empirical evidence from the UK

2017 ◽  
Vol 13 (1) ◽  
pp. 36-49
Author(s):  
Daniel Perez Liston
Keyword(s):  
Stock Returns ◽  
Multivariate Garch ◽  
Online Gambling ◽  
Future Research ◽  
Time Varying ◽  
Conditional Correlation ◽  
Socially Responsible ◽  
Content Type ◽  
Starting Point ◽  
The Uk

Purpose The purpose of this paper is to quantify beta for an online gambling portfolio in the UK and investigates whether it is time-varying. It also examines the dynamic correlations of the online gambling portfolio with both the market and socially responsible portfolios. In addition, this paper documents the effect of important UK gambling legislation on the betas and correlations of the online gambling portfolio. Design/methodology/approach This study uses static and time-varying models (e.g. rolling regressions, multivariate GARCH models) to estimate betas and correlations for a portfolio of UK online gambling stocks. Findings This study finds that beta for the online gambling portfolio is less than 1, indicative of defensiveness toward the market, a result that is consistent with prior literature for sin stocks. In addition, the conditional correlation between the market and online gambling portfolio is small when compared to the correlation of the market and socially responsible portfolios. Findings suggest that the adoption of the Gambling Act 2005 increases the conditional correlation between the market and online gambling portfolio and it also increases the conditional betas for the online gambling portfolio. Research limitations/implications This paper serves as a starting point for future research on online gambling stocks. Going forward, studies can focus on the financial performance or accounting performance of online gambling stocks. Originality/value This empirical investigation provides insight into the risk characteristics of publicly listed online gambling companies in the UK.

scholarly journals A time-varying parameter structural model of the UK economy

2019 ◽  
Vol 106 ◽  
pp. 103705 ◽  
Author(s):  
George Kapetanios ◽  
Riccardo M. Masolo ◽  
Katerina Petrova ◽  
Matthew Waldron
Keyword(s):  
Structural Model ◽  
Time Varying ◽  
Time Varying Parameter ◽  
The Uk

The impact of time-varying CO 2 injection rate on large scale storage in the UK Bunter Sandstone

2018 ◽  
Vol 68 ◽  
pp. 77-85 ◽  
Author(s):  
Clea Kolster ◽  
Simeon Agada ◽  
Niall Mac Dowell ◽  
Samuel Krevor
Keyword(s):  
Large Scale ◽  
Injection Rate ◽  
Time Varying ◽  
The Uk ◽  
The Impact

scholarly journals Volatility Spillover Effects in European Equity Markets

2005 ◽  
Vol 40 (2) ◽  
pp. 373-401 ◽  
Author(s):  
Lieven Baele
Keyword(s):  
Regional Integration ◽  
Regime Switching ◽  
Western Europe ◽  
Equity Markets ◽  
Spillover Effects ◽  
Equity Market ◽  
Monetary Integration ◽  
Time Varying ◽  
Trade Integration ◽  
European Equity

AbstractThis paper investigates to what extent globalization and regional integration lead to increasing equity market interdependence. I focus on Western Europe, as this region has gone through a unique period of economic, financial, and monetary integration. More specifically, I quantify the magnitude and time-varying nature of volatility spillovers from the aggregate European (EU) and U.S. market to 13 local European equity markets. To account for time-varying integration, I use a regime-switching model to allow the shock sensitivities to change over time. I find regime switches to be both statistically and economically important. Both the EU and U.S. shock spillover intensity increased substantially over the 1980s and 1990s, though the rise is more pronounced for EU spillovers. Shock spillover intensities increased most strongly in the second half of the 1980s and the first half of the 1990s. I show that increased trade integration, equity market development, and low inflation contribute to the increase in EU shock spillover intensity. I also find evidence for contagion from the U.S. market to a number of local European equity markets during periods of high world market volatility.

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