GARY RANSOM: When Berkshire bought BNSF, it raised the surplus of the property-casualty industry by about 4 percent.
2012: Does Berkshire's structure have any downsides?
2012: Does Berkshire's structure have any…
2012: Does Berkshire's structure have any downsides?
GARY RANSOM: When Berkshire bought BNSF, it raised the surplus of the property-casualty industry by about 4 percent.