Better performing private equity funds are more likely to raise follow-on funds and raise larger funds than funds that perform poorly. This relationship is concave so that top performing funds do not grow proportionally as much as the average fund in the market. At the industry level, we show that market entry in the private equity industry is cyclical. Funds (and partnerships) started in boom times are less likely to raise follow-on funds, suggesting that these funds subsequently perform worse. Aggregate industry returns are lower following a boom, but most of this effect is driven by the poor performance of new entrants, while the returns of established funds are much less affected by these industry cycles.