The challenge looming over Warren E. Buffett is whether Berkshire Hathaway, the vast business empire he has built over five decades, can continue to make the sort of large acquisitions that will help the company grow at a pace that will sustain Mr. Buffettâs reputation as the nationâs shrewdest investor.
But Mr. Buffett, in Berkshireâs annual report released on Saturday, highlighted the large deals that his company did last year, including the acquisition of H.J. Heinz â" and strongly hinted at how future big purchases might take place.
âWith the Heinz purchase, moreover, we created a partnership template that may be used by Berkshire in future acquisitions of size,â Mr. Buffett said. Last year, Berkshireâs energy subsidiary, MidAmerican Energy, bought NV Energy for $5.6 billion. âNV Energy will not be MidAmericanâs last major acquisition,â he said.
Jeff Matthews, a hedge fund manager who has written books on Berkshire, said that he detected a strong desire to do more acquisitions.
âI think itâs way more than a hint,â Mr. Matthews said in an email. âHe clearly sees more deals at MidAmerican.â
Every year, Berkshireâs annual reports are devoured as avidly as top-selling novels. The main attraction is Mr. Buffettâs letter to shareholders, in which he often extols America as a breeding ground for rags to riches success and details how he came to make certain investment decisions, using plain English and the odd dash of geezer humor along the way. This yearâs report was no different.
âMrs. B was 89 at the time and worked until 103 â" definitely my kind of woman,â Mr. Buffett wrote, describing the now deceased Rose Blumkin, whose family owned Nebraska Furniture Mart, a retailer that Berkshire purchased.
The praise for working to a late age suggests that Mr. Buffett, 83, is not retiring any time soon. Still, that will not have stopped Berkshireâs shareholders, and many others, from scouring the report for clues about who Mr. Buffett has picked as his successor to run Berkshireâs operations.
As he has done in past years, he heaped praise on Ajit Jain, the head of Berkshireâs reinsurance group and the man many have speculated will take up the top post. âHis operation combines capacity, speed, decisiveness and, most important, brains in a manner unique in the insurance business,â Mr. Buffett said of Mr. Jain.
A rising stock market and strong earnings from its companies helped Berkshire report record profits in 2013 of $19.5 billion, a 32 percent rise from $14.8 billion in 2012. Mr. Buffett has long used book value per share - a measure of Berkshireâs net worth belonging to shareholders - to assess the companyâs performance. That rose 18.2 percent in 2013, much less than the 32.4 percent rise in the Standard & Poorâs  500 stock index.
âAs Iâve long told you, Berkshireâs intrinsic value far exceeds its book value,â Mr. Buffett said.