Marketplace, 12/3/2012

And that’s one of many services that should be free. The group Transparency International estimates the poorest households in Mexico spend a third of their income on these bribes. Duncan Wood of the Woodrow Wilson Center said this corruption causes U.S. firms to think twice about investing in Mexico.

“They come in and they want to invest but it's just too difficult because you have to bribe too many people or you have to grease too many palms,” Wood said.

And he said Mexico’s economy is still virtually closed to foreign investment in many industries.