A sharp downturn in the U. S. housing market reduced the income of many who worked in the home construction industry. A Wall Street Journal news article reported that Walmart’s wire-transfer business was likely to suffer because many construction workers are Hispanics who regularly send part of their wages back to relatives in their home countries via Walmart. With this information, use one of the principles of economy-wide interaction to trace a chain of links that explains how reduced spending for U. S. home purchases is likely to affect the performance of the Mexican economy.

Answer is explained in the explanation section.

Explanation:

If the wages of the Hispanics construction worker in America are less then, they will not have near as much money to send home to their relatives back in Mexico.

And if their families do not have as much as it use to be then they will not be able to buy near as much as they used to.

It means that if the construction workers don't get as much money as they used to then, neither they nor their families  will be able to spend as much as they use to which will obviously hurt each of their economies.

its ii) i did this test

explanation: