Lecture 9 - NAFTA

Origins

The General Agreement on Tariffs and Trade (GATT) and later the World Trade Organization (WTO) progressively lowered multilateral trade barriers. However, under Article XXIV, regional trade agreements (RTAs) such as Free Trade Areas (FTAs) and Customs Unions are permitted.

Free Trade Areas (FTAs) remove trade restrictions preferentially among member states. One of the most significant examples is the North American Free Trade Agreement (NAFTA), established in 1994 between the United States, Canada, and Mexico. It was later renegotiated and replaced by the United States–Mexico–Canada Agreement (USMCA).

Rules of Origin (RoO)

Within an FTA, only goods wholly or substantially produced within the member area may cross internal borders tariff-free. This is known as the Rules of Origin criterion.

If a product is largely manufactured outside the area, it cannot qualify for tariff-free treatment within the FTA. This ensures that preferential access is reserved for goods genuinely originating within the member countries.

Why are RoO necessary?

Without RoO, trade deflection could occur — where goods from a non-member country enter the FTA through the member with the lowest external tariff, rather than the most efficient trade route.
Example: an EU product could enter the US through Mexico if Mexico’s tariff were lower, thereby bypassing US tariff protection.
RoO thus preserve the integrity of the FTA by ensuring that preferential access reflects genuine production origin rather than tariff arbitrage.

Design challenge

Rules of Origin must balance being:

  • Too strict, so that few goods qualify for tariff-free status, versus
  • Too lax, which would encourage trade deflection.

Main rule: non-NAFTA inputs must undergo a substantial transformation, changing the product’s classification (HS code).
Example: Bread baked in Mexico using European flour qualifies as Mexican origin, whereas imported European bread mix does not, since both fall under the same product classification.

Tariffs on intra-NAFTA trade were phased out over ten years, with full liberalisation by 2008. However, anti-dumping duties can still apply — unlike in a customs union such as the EU.

Empirical research (Noyanov, 2009) shows that trade deflection in NAFTA still occurs and responds to external tariff differentials among members.

Dealing with Non-Tariff Barriers

The EU’s Single Market reduced non-tariff barriers (NTBs) through policy harmonisation.
NAFTA, lacking supranational institutions, addressed NTBs through three approaches:

  1. Multilateral: under WTO provisions (e.g. non-discrimination in technical standards).
  2. Plurilateral: agreements beyond NAFTA membership, such as the Anti-Counterfeiting Trade Agreement (ACTA).
  3. Bilateral: mutual recognition of standards (e.g. telecoms equipment conformity testing between US, Canada, and Mexico).

NAFTA also liberalised trade in services, ensuring transparency and market access, and extended non-discriminatory public procurement rights to firms across member states.

Strong intellectual property rights (patents, trademarks, and copyrights) were protected under NAFTA’s legal framework, fostering innovation and investment confidence.

Impact on Trade

The removal of tariffs and many barriers was expected to stimulate intra-NAFTA trade, which indeed tripled between 1993 and 2011, surpassing $1 trillion annually.

  • Canada and Mexico became the US’s largest trading partners, ranking second and third in imports and exports.
  • Canada’s share of US imports remained stable after 1994 but declined after 2000 (partly due to CUSFTA 1989).
  • Mexico’s share of US imports rose from 6.9% (1993) to 11.5% (2001) and 12.8% (2010).

By the late 2000s, the US had 17 FTAs, and Mexico had 44, including the Mexico–Central America Single FTA (2011).

How much of this growth was due to NAFTA?

Empirical findings:

  1. Romalis (2005) – the largest import share increases occurred where tariff reductions were greatest.
  2. Burfisher et al. (2001) – small increases in net trade and minimal trade diversion.
  3. Kehoe et al. (2002) – evidence of trade diversion in US textiles, clothing, and footwear, benefiting Mexican exporters.
  4. Kehoe (2005) – simulation studies underestimated the extent of intra-industry trade (IIT).
  5. US Congressional Budget Office (2003) – concluded that NAFTA’s effect on total trade was modest compared to broader economic trends.

Employment Concerns and Labour Effects

NAFTA provoked debate in the United States over potential job losses due to Mexico’s lower wage costs.
Presidential candidate Ross Perot famously warned of a “giant sucking sound” of jobs moving south.

However, productivity differentials complicated this view. US firms could achieve competitive FDI gains by combining US management and technology with Mexican labour costs.
NAFTA thus encouraged foreign direct investment (FDI) in Mexico, particularly by US multinationals.

To mitigate fears of labour exploitation, NAFTA introduced the North American Agreement on Labour Cooperation, setting standards for:

  • Minimum wages,
  • Child labour prohibition,
  • Occupational safety,
  • Enforcement of national labour laws.

Additionally, US Trade Adjustment Assistance (TAA) extended unemployment and retraining benefits for displaced workers.

Jobs, Wages, and the “Keynesian” Legacy

US President Bill Clinton (1993) claimed that “NAFTA means jobs, American jobs and American good-paying jobs.”
However, evidence is mixed:

  • Economic Policy Institute (Robert Scott) estimated nearly 1 million net US jobs lost (1993–2002), though this approach ignored wider macroeconomic factors.
  • Carnegie Report (2004) and other simulation studies found only minor employment effects, suggesting a net zero or small gain in jobs.

In theory, factor price equalisation could lower unskilled US wages as imports from labour-intensive Mexican industries rise. Yet empirical evidence attributes most US manufacturing job losses to technological change, not NAFTA.

Impact on Mexico

Mexico experienced significant economic transformation:

  • GDP per capita increased by roughly 40% since 1994, and poverty declined.
  • FDI inflows expanded from $15 billion to $90 billion, initially dominated by maquiladora (labour-intensive) industries along the US border.
  • Over time, Mexico shifted toward advanced manufacturing, notably in automotive and aerospace sectors.
  • NAFTA accelerated structural transformation, but also contributed to the decline of small-scale agriculture.

Scholars (Taylor, 2012) describe NAFTA as “the key driver of Mexico’s economic and social transformation over the past two decades.”

Summary

  • NAFTA deepened North American integration through tariff elimination and investment liberalisation.
  • Rules of Origin were essential to prevent trade deflection and preserve preferential trade integrity.
  • Empirical evidence shows substantial trade expansion but limited net effects on US employment.
  • Mexico benefited most in FDI and industrial modernisation, though small farmers lost out.
  • The USMCA (2018) continues this framework with stronger labour, environmental, and digital trade provisions.

Reading: Perloff (Microeconomics), US Congressional Budget Office (2003), Romalis (2005), Kehoe (2005), Taylor (2012).
Keywords: NAFTA, USMCA, Rules of Origin, trade deflection, intra-industry trade, factor price equalisation, FDI, labour standards.