I hope the contents of this post live up to the intellectual pretension of a term like 'meta-theory'. You be the judge. During the interwar period, John Maynard Keynes wrote three books on money/macro: 1.  A Tract on Monetary Reform (1923) 2. A Treatise on Money (1930) 3. The General Theory of Employment, Interest and Money (1936) The first book was written in the early 1920s, in the midst of highly unstable price levels in many countries, notably Germany. The...