This article provides a framework for synthesis of the productivity and the competitiveness of Tunisian mining industry which highlights the significant contribution of the Tunisian mining Firm to national economy, being a natural monopoly, which differed remarkably according to key indicators such as using a study for a period between (1999-2012): its Corporate Social responsibility CSR and mine environment protection, their accumulation of human capital, the international Joint-venture (J-V) alliance and their investment. The analyzes on this study period shows two major economic shocks, such as hydrocarbon in June 2007, affecting the production chain of this mining citizen Firm who's most serious in 2011, dates from the revolution. In addition, the Firm was able to overcome the challenges of this date and found an agreement with the social demands of the citizens in the mining Basin and will come to recovery at the average rate of production from 2012 to our days.

The global financial crisis showed the difficulty of access to the economic and financial balance in the context of priority speculative symbolic economy. The Islamic finance, which, is characterized by the distribution of risk and avoid selling debt and risks, and the abolition of 'riba'-based transactions, and encourage contracts related to the real economy, one of the most important alternatives to contain the economic fluctuations. It is therefore incumbent on the Islamic finance industry that is keen to create new products and financial instruments embody sectarian and privacy of Islamic economics, and interact with the developments in the banking and financial framework 'Sharia'. And the actual needs of the real economy, including allowing the evolution of the economic balance of Islamic finance. If the products of the Islamic financial industry just a reformulation of the traditional financial products; the result ultimately threatens the balance and economic stability.

Since the nineties years until nowadays, many industrialized countries adopted the inflation targeting strategy, following per other transition countries thus as other developing countries. In this framework, the monetary authorities are attached to announce an explicit target range of inflation rate foreseen on one or several periods. The inflation targeting requires the strengthening of communication between the monetary authorities and the public what enhance accountability and the discipline of the Central Bank towards its commitment to respect the realization of the objectives announced of its monetary policy in terms of inflation. The monetary authorities must be transparent concerning their monetary policy and will be judged, or even punished on all deviation from the target announced. The station results in a loss of credibility expressed by the economy actors.
Through this paper, firstly, we discuss the theoretical background of this approach to inflation targeting as a new monetary policy rule. To do this, we have tried to practice this new strategy of inflation targeting while presenting its main interests, preconditions, its advantages and unwinding mechanisms. In a second time, we were moving to concrete examples through the main experiences of Industrialized Countries Central Banks, which are in fact the first precursors to incorporate explicit inflation targets in the formulation of monetary policies following this new strategy target, followed by other Transition countries (Czech Republic, Romania ... etc..) and some in developing countries such as Brazil and the Philippines, ... etc. which are actually encouraged by good results achieved by the major Western countries.