The Disappearing Mid-Market // The Economist. – 2006. – May 18.
131
Knudsen T. R., Randel A., Rugh0lm J. The Vanishing Middle Market // The McKinsey Quarterly. – 2004. – Number 4.
132
Prahalad С. К. The Fortune at the Bottom of the Pyramid: Eradicating Poverty through Profits. – Philadelphia: Wharton School Publishing, 2005: Hart S. L. Capitalism at the Crossroads: The Unlimited Business Opportunities in Solving the World's Most Difficult Problems. – Philadelphia: Wharton School Publishing, 2005.
