The purpose of the regulated halts on stock exchange markets is to spread the information on the market and to protect the interests of the small shareholders. The aim of this work is to empirically investigate the trading halts on the French stock exchange market. We proceed to a detailed...

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...

the use of the trading halts is a practice common to all markets. However, the advantages and the disadvantages of the measurements are regularly discussed. The partisans think that the trading suspensions or the price limits make it possible to the investors to have time to react to the new...

Efficiency of financial markets is one of the most studied subjects in theoretical finance. Formalization of this idea is realised by the random walk model. Numerous tests have been developed to validate the hypothesis of identically and independently distributed innovations. But the results of...

Health expenditure growth is mostly driven by the dynamic of medical innovations and not by population ageing. Do we spend too much, or not enough, for health care? To answer to such a question, one needs an evaluation in monetary units of the value of health and longevity gains obtained as a...

The purpose of the regulated interruptions of quotation on Stock exchange markets is to reduce asymmetries of information and volatility and to allow the emergence of a consensus. The use of these interruptions is very frequent on the French stock exchange market for the values included in the...