InterOuta - at its most basic level, private equity is share capital that is not quoted on a public stock exchange.
However, the private equity I was referring are private equity firms, whose reason for existence is to invest in private companies (and sometimes to buy all of the share capital of a company listed on public stock exchanges - referred to as taking the company private).
I have four issues with private equity firms.
First, their business model is predicated on holding their investments for short time frames. So they tend to make decisions designed to maximise their short term profits rather than improve the long term health of the businesses they buy.
Secondly, the private equity firms can borrow much more than other people, putting them at a competitive advantage (I would say an unfair one). It's easiest to demonstrate this with numbers. Imagine a company worth 100. If I had cash of 100 I could buy it. And if it was worth 105 in 5 years time then I would make 5 of profit when I sold it - a 5% return. Now imagine the same company but bought by a private equity firm. The PE firm only has cash of 20, but is able to borrow an additional 80. When they sell the company for 105, they repay the debt of 80, and make 5 of profit on their own cash - a 25% return.
Ah, you might say, but surely the PE firm will also have to pay interest on the 80 debt it borrowed, which will reduce the 25% return to something more realistic? That brings me on to my third issue - the private equity firms typically stuff the debt they borrow into the companies they buy, so that (bizarrely) the company pays the interest on the debt taken on to buy it. Going back to my fictional company above, it almost certainly wouldn't be able to borrow 80 in its own right, so it's being asked to bear an uncommercial expense as a result of being owned by the private equity firm.
Finally, PE firms - who are clearly trading in companies rather than investing in them - are taxed on their profits as capital rather than income, which means that the PE managers pay ridiculously low tax on the profits they make (oftentimes less than 10%). Which I think is a national scandal.
TBF, PE can be a life saver for failing businesses that can't access finance elsewhere, but I think the scale of which profits are stripped from the acquired companies (and the rate at which the profits are taxed) are wrong.