This paper investigates the possible crowding-in or crowding-out effect of public investment on private investment in sub-Saharan Africa. While this relationship has been theoretically and empirically studied in the literature, most studies used traditional panel fixed effects or Generalized Method of Moments estimators which can potentially lead to biased and inconsistent estimates. We employ heterogeneous parameter models, including the Mean Group, the Common Correlated Effects Mean Group Model, and the Augmented Mean Group estimators, to incorporate the possibility of slope heterogeneity and the presence of cross-sectional dependence. Using a large sample of 44 sub-Saharan African countries over the period 1960-2015, we find that on average public investment crowds in private investment in sub-Saharan Africa. We also find that the impact differs between countries and is higher in countries with a strong private sector.
Cet article étudie l’impact des entrées d’IDE sur la pénétration de l’assurance non-vie dans 76 pays en développement sur la période 1996-2011. Il s’appuie sur deux effets bien documentés dans la littérature : i) les IDE contribuent à la croissance du revenu par tête, et ii) la hausse du revenu par tête favorise le développement des assurances, notamment de l’assurance non-vie. Ainsi, l’objectif de ce travail est de montrer que les IDE contribuent au développement du secteur des assurances au-delà de l’effet revenu. Les estimations montrent que les IDE ont bien cet effet additionnel de l’effet revenu, mais que son ampleur est conditionnée à la sécurité juridique des contrats et des personnes.
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