Increasing soil salinity threatens the sustainability of irrigation schemes in several rice growing areas of the world, particularly in western Africa. Desalinisation is needed to sustain irrigated rice cultivation. However, to keep track of the effectiveness of any desalinisation method,...

Implied volatilities, as derived from option prices, have been shown to be useful in forecasting the subsequently observed volatility of the underlying financial variables. In this paper, we address the question of whether implied correlations, derived from options on the exchange rates in a...

The concept of business models and consequently business model innovation has its foundation in corporate practice, strategic management, and industrial economics. However, business models are not a strategy but constitute the core and driver of a strategy as well as the key for decoding,...

Each financial crisis calls for ¡ª by its novelty and the mechanisms it shares with preceding crises ¡ª appropriate means to analyze financial risks. In <em>Extreme Financial Risks and Asset Allocation</em>, the authors present in an accessible and timely manner the concepts, methods, and techniques...

Le modèle de marche au hasard en finance peut être considéré comme issu de la convergence de trois préoccupations distinctes : une préoccupation morale avec Jules Regnault (1834-1894), une préoccupation scientifique avec Louis Bachelier (1870-1946), et une préoccupation financière avec...

[eng] Indexed management and averages theory . One hypothesis assumes that indexed passive management is a resurgence of Quételet’s (1835-1869) averages theory in the modern finance. First the author shows that the portfolios choice theory and the canonical breaking up of financial risk are...

[eng] Excessive volatility : irrational behaviours or intellectual dividing ? . The main assumption to explain high volatility of markets is the irrational behaviours of investors. This analysis contrasts the « good » economy with the « bad » stock exchange. The author presents the origins...

Organizations are open systems operating under conditions of substantial turbulence, risk (known unknowns), and uncertainty (unknown unknowns) and seeking to balance stability and coherence with flexibility and change in pursuit of higher levels of efficacy and routine excellence. In addition,...