SolarCity adviser Lazard made mistake in Tesla deal analysis

Lazard Ltd , the investment bank that advised SolarCity Corp on its $2.6 billion sale to Tesla Motors Inc , made an error in its analysis that discounted the value of the U.S. solar energy company by $400 million, a regulatory filing by Tesla showed on Wednesday. While the purchase price was within the valuation range that Lazard came up with for SolarCity even after accounting for the miscalculation, the error illustrates how even leading investment banks can make mistakes on some of the highes