Sadiq Khan is indeed different from certain of his coreligionists, he doesn’t want to subject London to actual and real bang-bang bombing. He just wants to have as close as possible the same effect upon the housing of The Great Wen.
Sadiq Khan calls for new powers to impose London rent controls
As standard economic theory states, as near all economists agree:
I include a table of propositions to which most economists subscribe, based on various polls of the profession. Here is the list, together with the percentage of economists who agree: 1) A ceiling on rents reduces the quantity and quality of housing available. (93%)
Or, as has more memorably been said:
Myrdal stated, “Rent control has in certain Western countries constituted, maybe, the worst example of poor planning by governments lacking courage and vision.”3 His fellow Swedish economist (and socialist) Assar Lindbeck asserted, “In many cases rent control appears to be the most efficient technique presently known to destroy a city—except for bombing.”
Still, guess we’ll have to give Sadiq Khan at least some credit. He’s only going to bomb London housing through bad policy in the pursuit of votes rather than actually get out the ammonium nitrate.