BERKSHIRE HATHAWAY INC.

If no mega-catastrophe occurs, I ¾ once again ¾ expect the cost of our float to be low in the coming year. We will indeed need a low cost, as will all insurers. Some years back, float costing, say, 4% was tolerable because government bonds yielded twice as much, and stocks prospectively offered still loftier returns. Today, fat returns are nowhere to be found (at least we can't find them) and short-term funds earn less than 2%. Under these conditions, each of our insurance operations, save one, must deliver an underwriting profit if it is to be judged a good business. The exception is our retroactive reinsurance operation (a business we explained in last year's annual report), which has desirable economics even though it currently hits us with an annual underwriting loss of about $425 million.

Shortly after yearend we exchanged 4,740 Berkshire A shares (or their equivalent in B shares) for the 12.7% minority interest in Shaw, which means we now own 100% of the company. Shaw is our largest non-insurance operation and will play a big part in Berkshire's future.

Over the years, our insurance business has provided ever-growing, low-cost funds that have fueled much of Berkshire's growth. Charlie and I believe this will continue to be the case. But we stumbled in a big way in 2001, largely because of underwriting losses at General Re.

These advantages of scale, and others we have, give NetJets a significant economic edge over competition. Under the competitive conditions likely to prevail for a few years, however, our advantage will at best produce modest profits.

Warren E. Buffett

Our NetJets® fractional ownership program sold a record number of planes last year and also showed a gain of 21.9% in service income from management fees and hourly charges. Nevertheless, it operated at a small loss, versus a small profit in 2000. We made a little money in the U.S., but these earnings were more than offset by European losses. Measured by the value of our customers' planes, NetJets accounts for about half of the industry. We believe the other participants, in aggregate, lost significant money.

Additionally, General Re was overly-competitive in going after, and retaining, business. While all concerned may intend to underwrite with care, it is nonetheless difficult for able, hard-driving professionals to curb their urge to prevail over competitors. If "winning," however, is equated with market share rather than profits, trouble awaits. "No" must be an important part of any underwriter's vocabulary.

* All figures used in this report apply to Berkshire's A shares, the successor to the only stock that the company had outstanding before 1996. The B shares have an economic interest equal to 1/30th that of the A.

At Berkshire, it should be noted, we have for some years been willing to assume more risk than any other insurer has knowingly taken on. That's still the case. We are perfectly willing to lose $2 billion to $2½ billion in a single event (as we did on September 11th) if we have been paid properly for assuming the risk that caused the loss (which on that occasion we weren't).

Our shoe operations (included in "other businesses") lost $46.2 million pre-tax, with profits at H.H. Brown and Justin swamped by losses at Dexter.

Indeed, we have a major competitive advantage because of our tolerance for huge losses. Berkshire has massive liquid resources, substantial non-insurance earnings, a favorable tax position and a knowledgeable shareholder constituency willing to accept volatility in earnings. This unique combination enables us to assume risks that far exceed the appetite of even our largest competitors. Over time, insuring these jumbo risks should be profitable, though periodically they will bring on a terrible year.

To implement our owners' charitable desires, each year we notify registered holders of A shares (A's represent 86.6% of our equity capital) of a per-share amount that they can instruct us to contribute to as many as three charities. Shareholders name the charity; Berkshire writes the check. Any organization that qualifies under the Internal Revenue Code can be designated by shareholders. Last year Berkshire made contributions of $16.7 million at the direction of 5,700 shareholders, who named 3,550 charities as recipients. Since we started this program, our shareholders' gifts have totaled $181 million.

GEICO's premium volume grew 6.6% last year, its float grew $308 million, and it achieved an underwriting profit of $221 million. This means we were actually paid that amount last year to hold the $4.25 billion in float, which of course doesn't belong to Berkshire but can be used by us for investment.

The result: This store outsells all others in the R.C. Willey chain, doing a volume of business that far exceeds the volume of any competitor and that is twice what I had anticipated. I cut the ribbon at the grand opening in October ¾ this was after a "soft" opening and a few weeks of exceptional sales ¾ and, just as I did at Boise, I suggested to the crowd that the new store was my idea.

To get the discount, you must make your purchases on Thursday, May 2 through Monday, May 6 and also present your meeting credential. The period's special pricing will even apply to the products of several prestigious manufacturers that normally have ironclad rules against discounting but that, in the spirit of our shareholder weekend, have made an exception for you. We appreciate their cooperation. NFM is open from 10 a.m. to 9 p.m. on weekdays and 10 a.m. to 6 p.m. on Saturdays and Sundays.

The large acquisitions we initiated in late 2000 ¾ Shaw, Johns Manville and Benjamin Moore ¾ all came through their first year with us in great fashion. Charlie and I knew at the time of our purchases that we were in good hands with Bob Shaw, Jerry Henry and Yvan Dupuy, respectively ¾ and we admire their work even more now. Together these businesses earned about $659 million pre-tax.

Chairman of the Board

At MidAmerican ¾ this may surprise you ¾ we also own the second-largest residential real estate brokerage business in the country. We are market-share leaders in a number of large cities, primarily in the Midwest, and have recently acquired important firms in Atlanta and Southern California. Last year, operating under various names that are locally familiar, we handled about 106,000 transactions involving properties worth nearly $20 billion. Ron Peltier has built this business for us, and it's likely he will make more acquisitions in 2002 and the years to come.

Since September 11th, Ajit has been particularly busy. Among the policies we have written and retained entirely for our own account are (1) $578 million of property coverage for a South American refinery once a loss there exceeds $1 billion; (2) $1 billion of non-cancelable third-party liability coverage for losses arising from acts of terrorism at several large international airlines; (3) £500 million of property coverage on a large North Sea oil platform, covering losses from terrorism and sabotage, above £600 million that the insured retained or reinsured elsewhere; and (4) significant coverage on the Sears Tower, including losses caused by terrorism, above a $500 million threshold. We have written many other jumbo risks as well, such as protection for the World Cup Soccer Tournament and the 2002 Winter Olympics. In all cases, however, we have attempted to avoid writing groups of policies from which losses might seriously aggregate. We will not, for example, write coverages on a large number of office and apartment towers in a single metropolis without excluding losses from both a nuclear explosion and the fires that would follow it.

Insurers have always found it costly to ignore new exposures. Doing that in the case of terrorism, however, could literally bankrupt the industry. No one knows the probability of a nuclear detonation in a major metropolis this year (or even multiple detonations, given that a terrorist organization able to construct one bomb might not stop there). Nor can anyone, with assurance, assess the probability in this year, or another, of deadly biological or chemical agents being introduced simultaneously (say, through ventilation systems) into multiple office buildings and manufacturing plants. An attack like that would produce astronomical workers' compensation claims.

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Same-store sales at our home-furnishings retailers were unchanged and so was the margin ¾ 9.1% pre-tax ¾ these operations earned. Here, too, return on invested capital is excellent.

I've made three decisions relating to Dexter that have hurt you in a major way: (1) buying it in the first place; (2) paying for it with stock and (3) procrastinating when the need for changes in its operations was obvious. I would like to lay these mistakes on Charlie (or anyone else, for that matter) but they were mine. Dexter, prior to our purchase ¾ and indeed for a few years after ¾ prospered despite low-cost foreign competition that was brutal. I concluded that Dexter could continue to cope with that problem, and I was wrong.

GEICO, by far our largest primary insurer, made major progress in 2001, thanks to Tony Nicely, its CEO, and his associates. Quite simply, Tony is an owner's dream.