Teach a parrot the terms 'supply and demand' and you've got an economist.
— Thomas Carlyle, born on this date in 1795
"you've got" looks to me like an Americanism; or did we learn that from the Scots?
It seems to have first been attributed to Carlyle in 1907 by economist Irving Fisher. And it usually phrased a little more formally. Whether it originated with Carlyle or not, there seems to be some truth to it.