Popper recognizes that there are, at least, two versions of his "Rationality Principle" (RP) yet he does not explain either how they relate to other parts of his works or which version social scientists should adopt. We argue that Popper's formulation of RP can be upgraded by explicitly...

We present a simple theoretical framework that integrates the notion of the natural or neutral interest rate, liquidity preference theory, and the monetary policy practice by modern central banks. We claim that this theory explains the conditions under which an economy will experience an...