The market’s line estimation implicitly assumes that its parameters are constant over time. Investors, who use the beta of this line for build their portfolio, have a similar behavior whatever their investment horizon. We discuss this hypothesis in this article using the technique of wavelets...

The Rolling-Regression are currently used to study the parameters stability over time. In finance, we can analyse the time evolutions of systematic risk relaxing the constant-Beta hypothesis. This method can be associated with a wavelet decomposition of the variables in order to the parameters...

The main objective of this article is to analyse the impact of governance mechanisms in general and their interactions in particular on the performance of microfinance institutions while taking into account their legal forms. To achieve this objective, a multiple regression was carried out on a...

The global financial crisis has induced a series of failures of most conventional banks. This study investigates the main sources of banking fragility. We use a sample of 49 banks operating in the Tunisian over the period 2006-2015 to analyze the relationship between credit risk and liquidity...

The evolution of the banking regulatory environment in recent years raises many questions about the effectiveness of prudential measures and the relevance of the legal system in this new landscape. The Cooke ratio, replaced in 2003 by the Mc Donough ratio, has since become an international...

The evolution of the banking regulatory environment in recent years raises many questions about the effectiveness of prudential measures and the relevance of the legal system in this new landscape. The Cooke ratio, replaced in 2003 by the Mc Donough ratio, has since become an international...

Performance is not just a number: it can take all informational forms if it responds to these two functions – the conduct of action and the evaluation of results. Technical and technological performance highlights the progress that is developing. constantly and marks a company's ability to...

Under current conditions, many companies are in a crisis without their management being able to control these situations. The globalization of the market, the pressure exerted by competition, the continuous need for efficiency of activities with the falling prices, the growth dynamics of the...

The objective of this work is to analyze the impacts of the war between Russia and Ukraine on the Malagasy economy. The main channel of transmission of the shock resulting from this tension is the variation in the price of oil, which will generate a deterioration in the balance of payments and a...