Vassilios G. Papavassiliou

The Efficiency of the Realized Range Measure of Daily Volatility: Evidence from Greece

In this study we estimate and compare the realized range volatility, a novel efficient volatility estimator computed by summing high–low ranges for intra‐day intervals, to the recently popularized realized variance estimator obtained by summing squared intra‐day returns. Our results, derived from a Greek equity high‐frequency data set, show that realized range‐based measures improve upon the corresponding realized variance‐based ones in most cases, especially for the most actively traded stocks. The usefulness of high‐frequency data in measuring and forecasting financial volatility is apparent throughout the paper.

Measuring and Analyzing Liquidity and Volatility Dynamics in the Euro-Area Government Bond Market

Publisher states this book is due for publication Sept 2018, after which a one year embargo applies and need to contact permission again once this has expired.

A Comment on 'Cross-Border Merger, Vertical Structure, and Spatial Competition'

The aim of this paper is to revise and correct the results obtained in Beladi et al. [Beladi, H., Chakrabarti, A., Marjit, S., 2010. Cross-border merger, vertical structure, and spatial competition. Economics Letters 109, 112-114]. Specifically, we prove that the Nash equilibrium locations of the downstream firms are the same in the pre-merger free-trade case as they are following a cross-border upstream merger.

Price discovery and the effects of fragmentation on market quality: evidence from Cypriot cross-listed stocks

Using a novel high-frequency data set, we examine the contribution of Greek trading to the price discovery process of a pair of Cypriot blue-chip, cross-listed stocks during overlapping trading hours. Additionally, we investigate the effects of market fragmentation on the home market’s quality, as measured by microstructure-based liquidity measures. Contrary to earlier studies from other markets, our findings show that foreign stock exchanges can act as the leading contributors to price discovery and can concentrate the majority of trading activity and produce the lowest transaction costs. Our results also show that market fragmentation can lead to negative effects on market liquidity.

Equity Market Integration: The New Emerging Economy of Montenegro

Purpose - – The purpose of this paper is to examine the level of capital market integration between the Montenegrin stock market and a number of European Union (EU) countries and the USA. Design/methodology/approach - – The authors use an equity data set at the daily frequency from 12 countries and 4 broad regions, spanning the period from March 2003 to September 2008. They investigate long-run and short-run dynamics using cointegration techniques, Granger causality tests and vector error correction models. Findings - – The authors provide evidence for the existence of a long-run equilibrium between Montenegro and the developed countries of Western Europe and the USA. The investigation of short-run dynamics reveals that Montenegro follows an autonomous path, influenced mainly by domestic developments. Originality/value - – This is the first study on the Montenegrin stock market which has been neglected by the academic community. Montenegro’s accession in the EU is imminent; thus the study of the level of its integration with the rest of EU countries, before its actual accession, is useful for regulators and policymakers. Various lessons of a more general nature can also be drawn from the analysis of this paper.