See BBC News at Ten, 12 October 2022, for easily the worst media explanation of LDI yet. The fun starts 7:10.
Presenter “So let’s turn to our business editor, Simon Jack, who’s the expert on all these things.
Jack:
8:00 “Investors want more interest to justify the extra risk”. Not really. A gilt is risk free because the nominal payment (coupon and principal) is risk free. What investors are demanding is compensation for the extra inflation implied by the market.
8:05 “The cost of borrowing shot up”. Gilts are an asset, not a liability, and don’t involve borrowing. Of course, arbitrage implies the cost of long-dated borrowing will go up commensurately, so perhaps we could forgive him.
8:20 “Some pension managers have used them as security to get ready cash now”. Argh. Pension schemes have bought them using borrowed money, using them as security for the borrowing. No cash, apart from the haircut (‘margin’).
8:25 “To be able to pay out on those pension promises” Argh again. The scheme assets, typically risk bonds or equities, enable the payout. And again, there is no cash apart from the margin (and margin doesn’t have to be cash, necessarily).
Jack’s Wikipedia entry says “Before entering journalism, Jack worked for a decade as a corporate and investment banker in London, New York City and Bermuda. He has said that he neither liked the work, nor showed much ability at it.” Fair enough.