Private equity assets under management have increased fivefold over the last 12 years, reaching nearly $4.2 trillion in 2015. Private equity has demonstrated resilience during economic downturns, with lower default rates for PE-backed companies compared to speculative grade companies during the 2008 recession. Major university endowments, such as Harvard and Yale, have significant target allocations to private equity, between 18-31%, and have achieved strong long-term returns from their PE investments, averaging between 14-24% annually over 10-20 year periods. While private equity has seen tremendous growth, it also faces challenges from increasing regulatory scrutiny and constructing optimal asset allocations.