The Wharton School Brazil is a big country that is getting bigger -- its middle class grew by about 20 million from 2002 through 2008. GP Investments, the country's largest private equity firm, hopes to grow in tandem. The firm believes the problems of Brazil's past -- hyperinflation and political turmoil -- have been tamed. A stable democracy has been in place for about 20 years, inflation is way down, interest rates are relatively low and government debt levels are relatively healthy. GP Investments believes the formula is right for Brazil to combine the growth rate of an emerging market with the stability of a more developed country.