On the Wikipedia page for economist Ricardo Reis we learn he was “Influenced by: Greg Mankiw”, which basically should tell you everything. Everything that is that would lead to the conclusion that his macroeconomics is plain wrong. Yet his connections in the profession are strong and has prestigious academic appointments, is ensconced in senior editorial positions on influential economics journals, advises central banks in the US and has regular Op Ed space in a leading Portuguese newspaper (his homenation). These facts tell you what is wrong with my profession. That someone can write articles that are just so off the mark yet have significant influence in the profession and be held out in the public debate as to be someone who is worth listening to and being reported on. I have received many E-mails in the last few days about the proposal offered by Reis at Jackson Hole last week. Many readers are still confused and actually thought the proposal had credibility. Let me be clear – bank lending is not influenced by the reserve positions of the banks. Without credit-worthy borrowers lining up to access loans, the banks could have all the reserves in the world and the central bank could invoke any number of nifty ‘indexing’ or other support payment schemes on those reserves, and the banks would still not lend. And with those credit-worthy borrowers lining up to access loans, the banks will always lend irrespective of their current reserve position or the nifty support schemes the central bank might dream up. Core Modern Monetary Theory (MMT) 101!