Mohnish Pabrai is a concentrated value investor who has put together an impressive record since founding his firm, Pabrai Investment Funds, in 1999. A Wall Street outsider with a background in technology, Mumbai-born Pabrai set up his fund using the same fee structure as Warren Buffett’s partnership of the 1950s and ’60s (no fee based on asset size, but 25% of profits above a 6% return). Pabrai Funds returned 14.2% annually, after fees, since its inception in July 1999 through the end of 2015. That compares with a 4.3% average…