A number of studies have concluded that both private and public investment have a positive impact on long-term growth, but the magnitude of these two types of investments differ considerably, with private investment having a much stronger impact on the economy than public investment (Khan and Kumar, 1997; Bouton and Sumlinski, 2001).
Un certain nombre d &apos; études ont établi que l &apos; investissement privé et l &apos; investissement public avaient des incidences positives sur la croissance à long terme, mais que l &apos; investissement privé influait beaucoup plus sur l &apos; économie que l &apos; investissement public (Khan et Kumar, 1997; Bouton et Sumlinski, 2001).