U.S. pear exports to Mexico provide an example of a 4-
year transition. Prior to NAFTA, Mexico levied a tariff
of 20 percent on U.S. pears. On January 1, 1994, the
day of NAFTA's implementation, Mexico immediately
cut the tariff to 15 percent. On January 1, 1995, Mexico
made a second reduction, dropping the tariff to 11.25
percent. The third and fourth reductions occurred on
January 1, 1996, and January 1, 1997, when Mexico
lowered the tariff to 7.5 percent and 3.75 percent,
respectively. Mexico made its fifth and final reduction
on January 1, 1998, eliminating the tariff in its entirety.
Because this process featured five annual reductions,
some analysts describe this transition as having
occurred over a 5-year period, even though it lasted
only 4 years, from January 1, 1994, to January 1, 1998