Swensen was tapped to serve as the Yale endowment manager at age 31 in 1985. This position was offered by Swensen's other dissertation adviser, Yale's provost,
William Brainard. Swensen's candidacy was suggested by James Tobin, who, despite his former student's young age, believed he could be the right person. Swensen was hesitant about taking the job at first, since he did not know much about portfolio management aside from his studies in graduate school. Nevertheless, Brainard convinced him to take the position and Swensen started on April 1, 1985, taking an 80% pay cut. In 2018 Swensen stated Yale would not invest in companies that sold assault weapons.
The Yale Model from the school, he coined his investment philosophy "The Yale Model".
The Yale Model, sometimes known as the
Endowment Model, was developed by Swensen and Takahashi and is described in Swensen's book
Pioneering Portfolio Management. It consists broadly of dividing a portfolio into five or six roughly equal parts and investing each in a different asset class. This allowed Swensen to achieve a higher return than a pure equity portfolio, with lower risk. When Swensen took over the portfolio, it was mostly invested in US stocks, bonds and cash. Swensen diversified into foreign stocks, real estate, commodities, venture capital and buyout firms, and hedge funds which focus on market inefficiencies and distressed businesses. As a university endowment investing for the long term, it could tolerate more illiquidity than most investors. The model is also characterized by heavy reliance on investment managers in these specialized asset classes, a characteristic that has made manager selection at Yale a famously careful process. Soon after heading the Yale investment office, Swensen, together with Takahashi, sought out investments that would allow both diversification and higher return. They also implemented strategies that would take advantage of endowment idiosyncrasies: presumption of perpetuity, tax-exempt status, as well as distinguished and devoted alumni in the financial world. Hence, investments were made in venture capital firms, tech firms, and hedge funds. At the early stages not many firms dealt with types of assets Swensen was interested in. In order to invest in such assets he first helped to create those assets by becoming a venture capitalist of venture capitalists. As of 2019 about 60% of Yale endowment portfolio is allocated to alternative investments such as hedge funds, venture capital and private equity. At the time of his death, only 14% of the endowment was invested directly in equities. Nonetheless, Swensen stated he increased the equity exposure of the fund, Because of a high exposure to illiquid assets (up to 50% of the portfolio), some safer investments were held to meet university funding needs.
Criticism of the Endowment Model After Yale's endowment dropped 24.6% during the
2008 financial crisis, a report released in May 2010 by the
Tellus Institute argued that endowments had helped to cause the crisis. However,
Mark W. Yusko, founder of Morgan Creek Capital Management, argued that one year where endowments did not outperform but rather "tie everybody else" does not break the endowment model. According to Yusko, the endowment model is still the most viable proposition for long-term investors. Investors should also realize that mark-to-market reporting has a bigger impact on reported performance than before. Many institutional investors have tried to replicate the Swensen Approach and the Yale Model to fit their hedge funds, pensions funds, and endowments, but have not seen the same results. ==Views on personal investing==