The article discusses how private companies, especially foreign ones, have become more involved in providing infrastructure services in developing countries. This shift happened because state-owned companies were not performing well. Foreign companies invested a lot in areas like telecommunications and electricity in the 1990s, but many projects ended up disappointing everyone involved. This led to a decrease in foreign investment in infrastructure. Overall, foreign companies were involved in most private infrastructure projects in developing countries, but there were both positive and negative consequences. The article also talks about ways to make the most of foreign investment in infrastructure and address concerns about it.