Research

Peer-reviewed journal articles 

1. Firms' sustainable and responsible innovation in Nigeria: Does informality play a role?, with Farid Gasmi and Maruf Sanni, Economics of Transition and Institutional Change, 33(1), 139-164. (2025). 

2. An empirical analysis of the social contract in the Middle East and North Africa region and the role of digitalization in its transformation, with Farid Gasmi, Paul Noumba Um, and Pedro Rojas Milla, Economics of Transition and Institutional Change, 32(4), 1193-1243. (2024). 

3. Explaining process innovation in developing countries: The role of a firm's status, formal or informal, Managerial and Decision Economics, 44(6), 3077-3085. (2023). 

4. Competing against 'invisibles': the effect of competition from informal firms on formal firms' R&D, Eurasian Business Review, 13(1), 87-117. (2023). 

5. Separating innovation short-run and long-run technical efficiencies: Evidence from the Economic Community of West African States (ECOWAS), European Journal of Comparative Economics, 19(1), 103-141. (2022). 

6. Gouvernance et autonomie stratégique par l'innovation : Une étude exploratoire, avec Eva Szego, Economie Appliquée, 1(3), 83-113. (2022). English Abstract. 

7. Innovation, ancienneté du manager et implication des employés dans la prise de décision au sein des entreprises d'un pays en développement, Revue Economique, 73(5), 781-810. (2022). English Abstract.

8. Determinants of employees' participation in decision-making in developing countries: Does a firm's formal versus informal status matter?, Managerial and Decision Economics, 43(5), 1501-1514. (2022). 

Working papers

• Informal origin and the labor productivity of registered firms in sub-Saharan Africa. CREM Working Paper. Center for Research in Economics and Management (CREM), University of Rennes, University of Caen, and CNRS. February 2025.

• The effect of informal competition on registered firms' credit constraints: Global evidence, channels, and the roles of productivity and financial development. Working Paper 2024-10, Center for Research in Economics and Management (CREM), University of Rennes, University of Caen, and CNRS. October 2024.

• Can past informality impede registered firms' access to credit? Working Paper 2024-08, Center for Research in Economics and Management (CREM), University of Rennes, University of Caen, and CNRS. September 2024.

• Does firm informality hurt permanent employment? Evidence from Côte d'Ivoire, with Kolotioloma I.H. Yéo.

• The privatization-corruption relationship is nonlinear: Evidence from 1985-2022 data on telecommunications in 103 countries, with Isacco Bertè, Louise Demoury, Farid Gasmi, Niklas Patzig, and Laura Recuero Virto. TSE Working Paper no. 1523, Toulouse School of Economics. April 2024.

• Evaluating the integration of artificial intelligence technologies in defense activities and the effect of national innovation system performance on its enhancement, with Eva Szego. MPRA Paper no. 120617. April 2024.

• Can innovation reduce the size of the informal economy? Evidence from panel data, with Kolotioloma I.H. Yéo. MPRA Paper no. 120084. January 2024.