I haven’t much time today. I gave a talk at a conference in Melbourne today (as noted in yesterday’s blog). I will edit the audio soon and post the presentation for those who might be interested. In general I made the obvious point – if you want people to reach their potential and participate in the economy there has to be enough jobs and hours on offer. But the blog topic today relates to a speech made by a senior RBA official in Sydney yesterday which has excited some conservatives. In that speech, the RBA indicated that it would always lend to private banks which had high quality assets (in AUD) but might be experiencing a temporary liquidity problem and were unable to meet its reserve obligations. This function is part of the public good responsibilities of the central bank and does not mean that they prop up failed capitalist businesses. The speech made the valid distinction between illiquid firms and insolvent firms. The point of relevance to Modern Monetary Theory (MMT) is that the central bank cannot control the money supply because as part of its commitment to financial stability it must be prepared to provide reserves to the private banking system. That point is in contradistinction to the mainstream macroeconomics which starts by teaching students that the central bank controls the money supply. Overall, the central bank must treat financial stability as a public good and therefore must always guarantee reserves on demand.