The maneuvering has started for next year's congressional consideration of the North American Free Trade Agreement. House Majority Leader Richard A. Gephardt (D-Mo.) and Representative Sander M. Levin (D-Mich.) have written to the nation's largest companies seeking information on current and planned investment in Mexico. They're also seeking companies' wage and productivity data for U.S. and Mexican operations.

To continue reading this article you must be a Bloomberg Professional Service Subscriber.