The article discusses financial market liquidity and its applications to the stock market. It says market liquidity has a time attribute in which investors needs the shortest possible trade time to prevent price reversal risk, has volume in which there must be enough bids to satisfy the needs of...

According to traditional option pricing models, financial markets underestimate the impact of tail risk. In this article, we put forward a European option pricing model based on a set of assumptions that ensure, inter alia, that extreme events are better taken into account. Using simulations, we...

At the beginning of 2004, the Eurosystem implemented several modifications of its operational framework and liquidity management aiming at enhancing market efficiency. The purpose of this article is to study the effects of theses changes in the spread between the Eonia and the minimum bid rate....

The trading systems used on financial markets differ in terms of matching procedures, selected norms to write contracts, existence or not of intermediaries to ensure liquidity, market transparency... We are interested in measuring the direct effect on market specifics of a matching procedure...

In this paper, we are dealing with financial high frequency data; any time an order reaches the market, any time a cancellation or transaction occurs, a new record is made, ending up with a huge amount of data. Hence the time interval between two events is not fixed, forbidding the use of...

Quasiment inexistant au début des années 2000, le trading algorithmique représente 72 % des échanges sur actions aux États-Unis, 35 % en Europe, et continue son expansion vers d’autres marchés. Alors que ses promoteurs et ses détracteurs font valoir leurs arguments, les régulateurs et...

We discuss the relevance of the volatility as a risk measure. By considering recent studies on tick by tick data and specific features of derivatives, we introduce alternative measures to take into account the time and volume effects, or the distributional asymmetry.

Even though the FX market is one of the most liquid financial market, it would be an error to consider that it is immune against any liquidity problem. This paper analyzes on a long sample (2000-2009), the all set of quotes and transactions in three main currency pairs (EURJPY, EURUSD, USDJPY)...

This paper presents a study of intra-day patterns of stock market activity and introduces duration based activity measures for single stocks and multiple assets. The proposed measures involve weighted durations, i.e. times necessary to sell (buy) a predetermined volume or value of stocks. As...