's
Paseo de la Reforma. With 1994 being the final year of his administration's
sexenio (the country's six-year executive term limit), then-President
Carlos Salinas de Gortari endorsed
Luis Donaldo Colosio as the presidential candidate for his party, the
Institutional Revolutionary Party's (PRI), in the general election. In accordance with party tradition during election years, Salinas began an unrecorded spending spree. Mexico's
current account deficit grew to roughly 7% of
GDP that same year, and Salinas allowed the
Secretariat of Finance and Public Credit, Mexico's
treasury, to issue short-term peso-denominated treasury bills with a guaranteed repayment denominated in U.S. dollars, called "
tesobonos". These bills offered a lower
yield than Mexico's traditional peso-denominated treasury bills, called "
cetes", but their dollar-denominated returns were more attractive to foreign investors. Investor confidence rose after the
North American Free Trade Agreement (NAFTA) was signed. Upon NAFTA's entry into force on January 1, 1994, Mexican businesses as well as the Mexican government enjoyed access to new foreign capital thanks to foreign investors eager to lend more money. That year
Chase Manhattan Bank alone held an estimated $1.5 billion in Mexican securities. International perceptions of the country's
political risk began to shift, however, when the
Zapatista Army of National Liberation declared war on the Mexican government and began a
violent insurrection in
Chiapas. Investors further questioned Mexico's political uncertainties and stability when PRI presidential candidate Luis Donaldo Colosio was
assassinated while campaigning in
Tijuana in March 1994, and began setting higher
risk premia on Mexican financial assets. Higher risk premia initially had no effect on the peso's value because Mexico had a
fixed exchange rate.
Banco de México, the central bank, maintained the peso's value through an exchange rate peg to the U.S. dollar, allowing the peso to
appreciate or depreciate against the dollar within a narrow band. To accomplish this, the central bank would frequently
intervene in the open markets and buy or sell pesos to maintain the peg. The central bank's intervention strategy partly involved issuing new short-term public debt instruments denominated in U.S. dollars. They then used the borrowed dollar capital to purchase pesos in the
foreign exchange market, which, in turn, caused the peso to appreciate. The bank's purpose in mitigating the peso's depreciation was to protect against inflationary risks of having a markedly weaker domestic currency, but with the peso stronger than it ought to have been, domestic businesses and consumers began purchasing increasingly more imports, and Mexico began running a large
trade deficit.
Speculators began recognizing that the peso was artificially overvalued and led to speculative
capital flight that further reinforced downward market pressure on the peso. Consistent with the
macroeconomic trilemma in which a country with a fixed exchange rate and free flow of
financial capital sacrifices
monetary policy autonomy, the central bank's interventions to revalue the peso caused Mexico's money supply to contract (without an exchange rate peg, the currency would have been allowed to depreciate). The central bank's foreign exchange reserves began to dwindle and it completely ran out of U.S. dollars in December 1994. ==Crisis==