Publications

avril 2021 Do Banks and Microfinance Institutions Compete? Microevidence from Madagascar Pierrick BARATON, Florian LÉON

This paper examines whether the loan strategy of a microfinance institution is shaped by the entry of a bank. Specifically, we investigate whether the distance between a borrower of a microfinance institution and the closest bank influences loan conditions provided by the microfinance institution…

mars 2021 Liberalization, Technology Adoption, and Stock Returns: Evidence from Telecom Rabah AREZKI, Vianney DEQUIEDT, Rachel Yuting FAN, Carlo Maria ROSSOTTO

The paper investigates the pace of technology adoption in telecom technology post liberalization and its effect on stock returns using a new global panel dataset. Results are twofold. First, evidence points to the complementarity between telecom liberalization and regulatory independence in drivi…

mars 2021 Prospects and Challenges for Supply Chain Trade under the Africa Continental Free Trade Area Jaime DE MELO, Anna Twum

African countries are negotiating the African Continental Free Trade Area with the aim to spearhead global value chain (GVC) trade among African countries as a driver for robust economic growth. This paper evaluates the participation of sub-Saharan African Regional Economic Communities (RECs) in …

mars 2021 Fighting the soaring prices of agricultural food products – VAT versus Trade tariffs exemptions. A case study in Niger Stéphane CALIPEL, Céline DE QUATREBARBES, Bertrand LAPORTE

As happened in West Africa in 2008, in an imported inflation context, it is common for the governments to take short-term tax action to protect the poor: VAT or trade tariffs exemptions. As part of the tax-tariff transition, the comparison between Trade tariffs and VAT has already been the subjec…

février 2021 COVID-19’s ‘thundering’ effect on taxes Rabah AREZKI, Grégoire ROTA-GRAZIOSI

The COVID-19 crisis is an opportunity to renew the “social contract.” The disease reinforces the role of the state in protecting against health risk and in its social transfer programs to shield the citizenry against the economic consequences of the health crisis. COVID-19 has thus reasserted the…

janvier 2021 When and How African Real Exchange Rates Relative to China Affect its Manufacturing? Sylviane GUILLAUMONT JEANNENEY, Ping HUA

China’s exports of manufactured goods to African countries, stimulated by a real appreciation of several African currencies vis-à-vis the renminbi, have grown especially rapidly. This did not however prevent African countries from a higher growth rate of manufacturing value added than the precede…

janvier 2021 Les opérateurs de téléphonie mobile trop taxés en Afrique ? Grégoire ROTA-GRAZIOSI, Fayçal SAWADOGO

La taxe sur les appels internet via WhatsApp, Skype ou Viber a déclenché de nombreuses protestations au Liban entraînant la crise politique du pays quelques mois plus tard. De nombreux autres pays, particulièrement en Afrique sub-saharienne (comme l’Ouganda, la Zambie, ou encore le Kenya) ont ins…

janvier 2021 Effort fiscal en Afrique subsaharienne : les résultats d’une nouvelle base de données Emilie CALDEIRA, Ali COMPAORE, Mario MANSOUR, Grégoire ROTA-GRAZIOSI

Cet article propose (i) une nouvelle base de données des recettes fiscales de 42 pays d’Afrique subsaharienne sur la période 1980-2015, (ii) une estimation de l’effort fiscal pour ces pays et (iii) une réplication d’estimations précédentes de l’effort fiscal. La base de données provient des stati…

décembre 2020 Boys are more likely to be undernourished than girls: a systematic review and meta-analysis of sex differences in undernutrition Michel GARENNE

Excess male morbidity and mortality is well recognised in neonatal medicine and infant health. In contrast, within global nutrition, it is commonly assumed that girls are more at risk of experiencing undernutrition. We aimed to explore evidence for any male/female differences in child undernutrit…