<P> After the difficulties of the economic crisis, Buffett managed to bring its company back to its pre-recession standards: in Q2 2014, Berkshire Hathaway made $6.4 billion in net profit, the most it had ever made in a three - month period . </P> <P> Warren Buffett's writings include his annual reports and various articles . Buffett is recognized by communicators as a great story - teller, as evidenced by his annual letters to shareholders . He warned about the pernicious effects of inflation: </P> <P> The arithmetic makes it plain that inflation is a far more devastating tax than anything that has been enacted by our legislatures . The inflation tax has a fantastic ability to simply consume capital . It makes no difference to a widow with her savings in a 5 percent passbook account whether she pays 100 percent income tax on her interest income during a period of zero inflation, or pays no income taxes during years of 5 percent inflation . </P> <P> In his article "The Superinvestors of Graham - and - Doddsville", Buffett rebutted the academic efficient - market hypothesis, that beating the S&P 500 was "pure chance", by highlighting the results achieved by a number of students of the Graham and Dodd value investing school of thought . In addition to himself, Buffett named Walter J. Schloss, Tom Knapp, Ed Anderson (Tweedy, Browne LLC), William J. Ruane (Sequoia Fund, Inc .), Charles Munger (Buffett's own business partner at Berkshire), Rick Guerin (Pacific Partners, Ltd .), and Stan Perlmeter (Perlmeter Investments). In his November 1999 Fortune article, he warned of investors' unrealistic expectations: </P>

Who si the richest man in the world