Despite spending $2.5 trillion a year on roads, railways, ports, water, and other public infrastructure projects, countries around the world are still falling far short of what they need to invest, according to one estimate. Thus, it’s no surprise that there is renewed interest in public-private partnership (P3) projects, where businesses supplement public investment in return for reaping rewards such as tolls and fees. The White House, for one, suggests using private investments to fund most of its proposed $1.5 trillion in U.S. infrastructure spending.
