To achieve their ends, these companies could go into partnerships or even swap other papers.

In essence, the law changes the tax treatment when companies swap new securities for old bonds.

Many companies swapped old-fashioned pension plans, run by professionals, for defined contribution plans, controlled by employees.

They also charged that the companies swapped lists of their richest customers, who would be spared any sellers' fees at all.

The companies swap property, finance one another's projects and seem to shift profits around.

During the early 1920s, the models changed depending on what engines were available and the company swapped between four engine manufacturers.

In its first years, Alibaba had virtually no revenue model and often provided free services to help companies swap goods online.

Jimmy Lindsay, Spinx's real estate development manager, said the company would swap its land for a similar site nearby.

Alternatively, the company could swap the stations for more radio stations.

Regulatory filings also show that the company swapped worthless options for lower-priced ones or restricted stock.