No, but you should be aware that the definition of "First World" or "Third World" is very broad. To be more precise, Mexico is a developing nation that falls within the category of "newly industrialized country" or "emerging market". This means it has a better living standard than most developing countries; the proof being that Mexico is the 10th to 13th largest economy in the world.
See the related questions section for a more detailed answer.
Considering "Third World" is an outdated concept from the Cold War (1947-1991), yes: Mexico was part of the Non-aligned or Third World during such era -- the other "worlds" were the First World a.k.a. NATO and the Second World a.k.a. Warsaw Pact Nations.
Nowadays, Mexico would be considered a developing country, which forms part of the "Emerging Markets" or "Newly Industrialized Countries," a few generations away from becoming a "developed economy." For instance, by 2050 Mexico could have the economy of present-day Portugal or Greece.
Yes. This definition however, is a bit outdated (it was defined since the Cold War). Nowadays, Mexico would fall among the "Newly Industrialized Countries" or "Emerging Markets" which have the characteristics of both worlds: regions with quality of life equivalent to that of Western Europe, as well as areas with health, income and education on par to Sub-Saharan Africa. The following indicators would give you a sample of this:
mexico leads the world in cork production
In Mexico? Because it is the largest city in that country and third largest in the world (21.16 million)
disparity of educational technology industrialized first world country
mexico
Mexico is a capitalist country, while Cuba is communist.
Mexico
Mexico won the first world cup in 1990 it was held in Mexico
Mexico
Canada is the 2nd largest ibn the world (Russia is first). Mexico is 9th, I believe.
Well, I believe Mexico is the 19th fattest country in the world, if that helps. America is about the 12th.The United States is the "first fattest" country in the world. Mexico is the second.
Costa Rica was the first and only one to beat Mexico in a world cup qualifiers in Estadio Azteca (Mexico City)
There is no such thing as the best country in the world.
The most populous Spanish-speaking country in the world is Mexico.
mexico
The world llama is from the country of Mexico
Mexico
Mexico