Golub Capital's white paper argues that the long-term investment case for private equity remains intact, with operational improvement - not leverage or multiple expansion - as the dominant and most consistent driver of buyout returns, accounting for ~42% of value creation from 1984 - 2018. The paper presents empirical evidence that PE-backed companies outpace public peers on revenue growth (12.4% vs. 5.9% annualized) and EBITDA margins, and that sector-specialist buyout managers deliver superior IRRs and MOICs, making the current environment a potentially attractive re-entry point.