Leads and lags in sovereign credit ratings

R Alsakka, O Ap Gwilym - Journal of Banking & Finance, 2010 - Elsevier
This paper analyses lead–lag relationships in sovereign ratings across five agencies, and
finds evidence of interdependence in rating actions. Upgrade (downgrade) probabilities are …

Rating agencies' signals during the European sovereign debt crisis: Market impact and spillovers

R Alsakka, O Ap Gwilym - Journal of Economic Behavior & Organization, 2013 - Elsevier
The ongoing financial crisis has drawn considerable attention to the role of credit rating
agencies in the financial system. We examine how the foreign exchange market reacts to …

Rating agencies' credit signals: An analysis of sovereign watch and outlook

R Alsakka, O ap Gwilym - International Review of Financial Analysis, 2012 - Elsevier
We analyse sovereign watch and outlook signals from Moody's, S&P and Fitch. Prior
literature shows strong market reactions to these signals, which arguably contain more new …

The role of payout ratio in the relationship between stock returns and dividend yield

I McManus, O Ap Gwilym… - Journal of Business …, 2004 - Wiley Online Library
This paper examines the relationship between returns and dividend yield in the UK stock
market, and introduces earnings‐related data to the asset pricing model in the form of payout …

Modelling sovereign credit ratings: Neural networks versus ordered probit

…, D Crabbe, S Thomas, O Ap Gwilym - Expert systems with …, 2006 - Elsevier
Sovereign credit ratings are becoming increasingly important both within a financial regulatory
context and as a necessary prerequisite for the development of emerging capital markets. …

The impact of sovereign rating actions on bank ratings in emerging markets

G Williams, R Alsakka, O Ap Gwilym - Journal of Banking & Finance, 2013 - Elsevier
This paper analyses the effects of sovereign rating actions on the credit ratings of banks in
emerging markets, using a sample from three global rating agencies across 54 countries for …

The sovereign-bank rating channel and rating agencies' downgrades during the European debt crisis

R Alsakka, O ap Gwilym, TN Vu - Journal of international money and …, 2014 - Elsevier
We investigate the rating channel for the transmission of changes in sovereign risk to the
banking sector, analysing data from Moody's, S&P and Fitch before and during the European …

Differences of opinion in sovereign credit signals during the European crisis

R Alsakka, O ap Gwilym, H Vu - The European Journal of Finance, 2017 - Taylor & Francis
Motivated by the European debt crisis and the new European Union regulatory regime for
the credit rating industry, we analyse differences of opinion in sovereign credit signals and …

Extreme price clustering in the London equity index futures and options markets

O Ap Gwilym, A Clare, S Thomas - Journal of Banking & Finance, 1998 - Elsevier
Price clustering and optimal tick sizes have recently been topics of substantial public policy
interest, and this paper presents evidence which is relevant to both debates. Around 98% of …

Foreign exchange market reactions to sovereign credit news

R Alsakka, O ap Gwilym - Journal of International Money and Finance, 2012 - Elsevier
We analyse the reaction of the foreign exchange spot market to sovereign credit signals by
Fitch, Moody’s and S&P during 1994–2010. We find that positive and negative credit news …