How Calpers went over its head and invested in risky properties at the crest of the real estate boom when there were signs of a weakening in property markets and did this with borrowed money for 60-80% of the deals, so the returns on the downside are magnified. Much of it is for land near Pheoenix and Los Angeles that are empty tracts and now worth little in the depressed property markets, with losses of over $ 1 billion on the Los Angeles area land deal which was a $2.5 billion deal. alpers expects paper losses of 103% on its housing investments in the fiscal year ended June 30. Calpers residential and property investments represent 10% of its $182 billion portfolio and its real estate holdings are twice the percentage of the portfolio of average pension funds. Its also showing a 41% loss on its stock portfolio. Greed seems to have motivated Calpers as it sought higher and higher returns even as the market was showing signs of weakness, with returns on real estate deals in the good years averaging 12%. Calpers is the pension fund of the 1.6 million stae workers in the state of California. The average employer contribution rate for California governments including cities and counties is 13% of payroll. Calpers has estimated that if its investments show a20% decline then the payroll of employers would be hit with another 2 to 5% increase....