Research

Peer-reviewed journal articles 

1. Coups d'état and the informal economy

(with A.E. Apeti, A. Okara, and K.I.H. Yéo)

World Development, 207, 107477. (2026)

2. Do power outages hurt registered firms' access to finance in developing countries?

Oxford Economic Papers, gpag024. (2026).

3. The high-tech trap: Corruption risks in a new wave of privatization

(with I. Bertè, L. Demoury, F. Gasmi, N. Patzig, L. Recuero Virto, and P. Saba)

Conditionally Accepted: Journal of Regulatory Economics. 

4. Managing credit constraints under competitive pressure from the informal sector

Economics of Transition and Institutional Change (formerly Economics of Transition), 34(3), 475-498. (2026).

5. High-quality financial statements, credit constraints, and labor productivity

Economics Bulletin, 45(4), 1885-1897. (2025).

6. Can innovation reduce the size of the informal economy?

(with K.I.H. Yéo)

Comparative Economic Studies, 67(3), 623-681. (2025).

7. Can past informality impede registered firms' access to credit?

Journal of Comparative Economics, 53(3), 786-815. (2025).

8. Firms' sustainable and responsible innovation in Nigeria: Does informality play a role?

(with F. Gasmi and M. Sanni)

Economics of Transition and Institutional Change (formerly Economics of Transition), 33(1), 139-164. (2025).

9. An empirical analysis of the social contract in the Middle East and North Africa region and the role of digitalization in its transformation 

(with F. Gasmi, P. Noumba Um, and P. Rojas Milla)

Economics of Transition and Institutional Change (formerly Economics of Transition), 32(4), 1193-1243. (2024).

10. 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). 

11. Competing against 'invisibles': the effect of competition from informal firms on formal firms' R&D

Eurasian Business Review, 13(1), 87-117. (2023). 

12. 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).

13. Gouvernance et autonomie stratégique par l'innovation : Une étude exploratoire

(with E. Szego)

Economie Appliquée, 1(3), 83-113. (2022). English Abstract.

14. 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.

15. 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

1. Capturing the positive effects of brain drain through return migration policies: An analysis of the 1980-2022 Moroccan experience

(with F. Gasmi, S. Metevier, and P. Noumba Um)

CREM Working Paper. Center for Research in Economics and Management, University of Rennes, University of Caen, and CNRS. January 2026.

2. Crime and access to finance

CREM Working Paper. Center for Research in Economics and Management, University of Rennes, University of Caen, and CNRS. September 2025.

Submitted.

3. Informal origin and the labor productivity of registered firms in sub-Saharan Africa

CREM Working Paper. Center for Research in Economics and Management, University of Rennes, University of Caen, and CNRS. February 2025.

Under Review: Annals of Economics and Statistics.

4. Evaluating the integration of artificial intelligence technologies in defense activities and the effect of national innovation system performance on its enhancement

(with E. Szego)

MPRA Paper no. 120617. April 2024.