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Technologies de contrôle : un enjeu organisationnel de lutte contre la fraude interne ?

Internal fraud is a risk identified by organizations that have set up internal control services to protect themselves against it.

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The Impact of COVID-19 Pandemic on Islamic and Conventional Financial Markets: an international empirical evidence

Khaled GUESMI, Christian UROM, H. MZOUGHI, Fateh BELAID

The current global COVID-19 pandemic is adversely affecting financial markets, including commodities, conventional stocks, and Islamic stocks. This paper empirically investigates the extent to which COVID-19 effects may drive interdependence in markets.

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Can you hold an advantageous network position ? The role of neighborhood similarity in the sustainability of structural holes in social networks


The literature has provided multiple metrics to measure the structural position of a node in a network or its structural social capital. However, the dynamics of social capital is rarely addressed.

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Co-inventions, uncertainties and global food security

This paper examines the effects of international collaborative efforts on climate-friendly agricultural technologies on global food security. In particular, we use patent data on environmental technological innovations for OECD countries and global food prices from the period 1990 to 2016.

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elBullifoundation (2011-2022)


Ferran Adria was the head chef and cofounder of elBulli - which many critics considered the finest high-dining restaurant in the world. In 2009, at the top of his game, he shocked the world by closing his restaurant.

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Quantile co-movement and dependence between energy-focused sectors and artificial intelligence

Christian UROM, Khaled GUESMI, Gideon Ndubuisi, Benkraien Ramzi

This paper examines the dependence between Artificial Intelligence (AI) and eight energy-focused sectors (including renewable energy and coal) across different market conditions and investment horizons.