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This book tackles the perplexing problem of how to capture the qualitative differences that exist in entrepreneurship at any given point in time or across time, by presenting a novel qualitative index: Entrepreneurship Quality Index (EQI).

Using a variety of mathematical models and providing details for each category of business, EVI is measured as the ratio of the 'rate of entrepreneurial activities' to the 'rate of exit from the business', reflecting the sustainability, durability, business success, and status of entrepreneurial activities in a country.