Mexico's shadow economy is made of 20-million street vendors — most of whom pay no taxes. The government loses an estimated $3-billion a year in taxes.

In fact, only about 30% of the population in Mexico pays taxes. Formal industry doesn't create enough jobs, so Mexicans fill the void by selling trinkets, food, and crafts on the streets — escaping the grasp of the taxman.

Conrad Fox reports.

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