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Innovation, nature of investment and divergent growth paths: an explanatory model
Flacher, David; Lorenzi, Jean-Hervé; Villemeur, Alain - HAL - 2005
The principle of conditional convergence, in growth theory, fails to explain growth paths that are durably divergent … among countries having similar structural characteristics (same rates of investment, of capitaldepreciation, of demographic … growth, and similar access to technologies and resources...). Our research models the reasons of these divergencesby making …
Persistent link: https://www.econbiz.de/10008794221
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An answer to a question of herings et al
Bich, Philippe - HAL - 2008
One answers to an open question of Herings et al. (2008), by proving that their fixed point theorem for discontinuous functions works for mappings defined on convex compact subset of $\R^n$, and not only polytopes. This fixed point theorem can be applied to the problem of Nash equilibrium...
Persistent link: https://www.econbiz.de/10009643775
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An answer to a question of herings et al.
Bich, Philippe - HAL - 2008
One answers to an open question of Herings et al. (2008), by proving that their fixed point theorem for discontinuous functions works for mappings defined on convex compact subset of a Euclidean space, and not only polytopes. This rests on a fixed point result of Toussaint
Persistent link: https://www.econbiz.de/10010750537
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Some fixed point theorems for discontinuous mappings
Bich, Philippe - HAL - 2006
This paper provides a fixed point theorem à la Schauder, where the mappings considered are possibly discontinuous. Our main result generalizes and unifies several well-known results.
Persistent link: https://www.econbiz.de/10010750539
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Existence of pure Nash equilibria in discontinuous and non quasiconcave games
Bich, Philippe - HAL - 2009
In a recent but well known paper, Reny has proved the existence of Nash equilibria for compact and quasiconcave games, with possibly discontinuous payoff functions. In this paper, we prove that the quasiconcavity assumption in Reny's theorem can be weakened : we introduce a measure allowing to...
Persistent link: https://www.econbiz.de/10010738583
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A new cosmology of risks and crises time for a radical shift in paradigm and practice
Lagadec, Patrick - HAL - 2008
Crisis management theory and practice was in the main elaborated in the late 70s and 80s and developed and implemented in the 90s. We now have a rich knowledge of crisis intelligence and best practices. But, even if we can be proud of that advance, a further challenge remains: crises in the 21st...
Persistent link: https://www.econbiz.de/10008794129
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Does soft information matter for financial analysts' forecasts? A gravity model approach
Breton, Régis; Galanti, Sébastien; Hurlin, Christophe; … - HAL - 2011
We study whether the financial analysts' concern to maintain good relationships with firms' managers in order to preserve their access to 'soft' qualitative information entice them to issue pessimistic or optimistic forecasts. We use a gravity model approach to firmsanalysts relationships and...
Persistent link: https://www.econbiz.de/10010899519
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Does the firm-analyst relationship matter in explaining analysts' earnings forecast errors?
Breton, Régis; Galanti, Sébastien; Hurlin, Christophe; … - HAL - 2013
We study whether financial analysts' concern for preserving good relationships with firms' managers motivates them to issue pessimistic or optimistic forecasts. Based on a dataset of one-yearahead EPS forecasts issued by 4 648 analysts concerning 241 French firms (1997-2007), we regress the...
Persistent link: https://www.econbiz.de/10010899616
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Energy consumption, economic growth and CO2 emissions in Middle East and North African countries
Arouri, Mohamed El Hedi; Youssef, Adel Ben; M'Henni, Hatem - HAL - 2012
growth over the period 1981-2005. The econometric relationships derived in this paper suggest that future reductions in CO2 …
Persistent link: https://www.econbiz.de/10010933128
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Energy use and Economic Growth in Africa: A Panel Granger-Causality Investigation
Arouri, Mohamed El Hedi; Youssef, Adel Ben; M'Henni, Hatem - HAL - 2014
We make use of a bootstrap panel analysis of causality between energy use and economic growth for a sample of sixteen … African countries over the period 1988-2010. Our results show that growth and energy use are strongly linked in Africa …. However, African countries are heterogeneous and there is no "one way" recommendation about energy-growth relationship that …
Persistent link: https://www.econbiz.de/10010933129