"If the US economy catches a cold, Mexico catches pneumonia," the saying goes. Money sent from the US by Mexican workers there rank as the country's second largest source of foreign income. But that money has dropped 12%, the Central Bank says, due to a recession in the US construction industry, a heavy user of Mexican labour. Tighter border controls and a US crackdown on illegal immigration have also played a role.
Despite these concerns, Mexico's President Felipe Calderon is confident that the country will not suffer the ramifications of the credit crunch, and has proposed to spend US$4.4 billion next year (£2.5bn; 3.3bn euros) on infrastructure projects.
The labour secretary for the Mexico City government, Benito Miron Lince, has announced plans to support some 30,000 workers who are expected to return to the Mexican capital because of the slowdown in the US. Officials have stated that the current unemployment insurance program, unveiled last autumn, will be broadened. According to Mr Miron Lince, demand for unemployment benefits has rapidly increased during the last few months.
With the wave of migrants heading back, it is becoming increasingly evident that re-adjusting to a country that was once their home is not that simple.
After spending most of their lives in the US, Mexican families barely recognise relatives or their towns. Children in particular are often mocked and discriminated against by their teachers and fellow students when they pronounce their names in an American accent. Many are returning to the same grinding poverty that originally drove them out.