That is, a written clause in the bond indenture that says, if a control change occurs (i.e. merger, acquisition or LBO) then bondholders have the right to put their bonds back to the company at a predetermined price when a sale of substantially all the assets occurs.

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The Commerce Clause was written to make sure that states within the U.S. did not protect nascent industries through tariffs.

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In Spain all professional players have a "buy-out clause" written into their contracts and can move without their club's agreement, though in practice the player's new club pays that sum.

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