High and sustainable growth: persistence, volatility, and survival of high growth firms

In most developed countries, high growth firms (HGFs) are disproportionately responsible for net job creation, yet there is little information about how well such firms sustain their performance over time. Using GMM on a panel of 79,200 Romanian SMEs from 2000 to 2012, this paper evaluates the extent to which HGFs register stable and sustained growth over time, accounting for a variety of definitions for "high growth" that have been used in academic and policy literatures. Our results indicate that high growth SMEs are unable to maintain high growth rates for long, but do register lower volatility in growth rates and higher chances of survival. Identification of HGFs and results regarding growth volatility and persistence vary significantly with the specific definition of "high growth" used, as well as with the specific variable used to measure growth (e.g., revenue, employees, profit, productivity). Our findings have direct implications for growth policies and programs that depend on identifying HGFs.