The past two decades have seen the construction of a tiered system of international liquidity provision, the first tier including those whose credit is sufficient for a swap line with the Fed, the second tier including those who can offer acceptable collateral to the Fed, and the third tier...

Professor Axel Leijonhufvud passed away few months ago, at the age of 89. Despite the fact that the contribution he made to economics has been widely recognized, his approach remains 'problematic' because of his dialogue and proximity with different streams of thought, and in particular with the...