was involved in over two dozen company acquisitions, as whenever my company bought others I was one of the first ones through the front door (on the qt) well before close as I would be adding their facilities to the portfolio I managed. Companies are usually bought for one or more of three reasons:
-purchase to acquire intellectual property
--purchase to acquire their customer market share
-purchase to acquire their workforce
If the purchasing company doesn't include the third reason for the acquisition, layoffs are inevitable.
Private equity buy and dumps are a whole other deal, inevitably a matter of hostile takeovers of distressed/under performing companies for cheap whose combined assets are worth more than their purchase price, sell off those assets, close the doors. Pretty much the pond scum of corporate raiders.