Crazy ideas have a habit of re-entering the public policy debate even if they have been comprehensively rejected in theoretical and/or empirical terms. In fact, the whole edifice of neo-liberal thinking, which dominates the public debate now, was discredited by Keynes and others during the Great Depression and fell into irrelevance for most of the Post World War 2 growth period which delivered full employment. There are sub-sets of crazy ideas within the neo-liberal narrative that are in a similar position. In the early 1980s, we started to be barraged with what is known as supply-side economics, which amounted to a categorical rejection of demand-side measures (active fiscal policy intervention). One of the major claims of the supply-side approach was that deregulation and large tax cuts for the high income earners and companies would generate massive increases in real GDP growth (and national income) which would trickle down to the low-income earners. To fit this into the neo-liberal rejection of budget deficits they also had to come up with the claim that the tax cuts would actually generate offsets in tax revenue and improve the budget balance. This was the comedy that became known as the Laffer Curve. The economist who was pushing that line in the 1980s has also maintained an intense opposition to any use of fiscal policy to stimulate real GDP growth. He claims that the recent history shows that fiscal policy expansion damages growth. But when you dig into his argument you realise that the comedian is still trying to make us laugh. The only problem is that he isn’t very funny.

Everyday the major financial newspapers and magazines provide Op Ed space to so-called leading economists. For the majority of the public, it is these Op Ed articles that provide their interaction with my profession. It is a pity. The majority of the reasoning presented by these characters, most who occupied senior positions in US academic departments, is spurious to say the least. The public is thus being poorly educated (to put it mildly) on a daily basis and this represents a major problem for our democracies. Voting in elections is one thing. But when citizens are voting based on faulty understandings that they have derived from these economists, then what is the value of a free vote? Today I consider the views of leading Princeton economist Alan Blinder – who is another macroeconomist who is blind to the way the economy works.

I was going to write about the so-called fiscal cliff today and would have shown that the only thing that might fall of the said cliff would be real GDP growth should the US Congress actually not extend the tax cuts and impose the spending cuts. The US economy would follow the lead from the British economy and double-dip in 2013 as sure as day follows night (or is it the other way round). The most elementary exposition of what we might call – ECO101 Macroeconomics – would tell us that. One person’s spending is another person’s income and so on. I note that some economists are arguing that ECO101 Macroeconomics is alive and well because it has had a an impeccable record in the current crisis. In my recent blogs – Fiscal austerity damages real growth and prolongs the financial downturn and Neo-liberalism has failed but we still don’t get it – I have argued that the mainstream of my profession has failed – both in anticipating the emerging crisis and providing credible solutions to remedy it. So have I overstated that claim, given that ECO101 Macroeconomics is the go-to approach at present? The problem is that while there are some leading economists who are arguing against harsh fiscal austerity at present at the basis of their reasoning is a thoroughly mainstream approach which has helped create the problem. I don’t think their version of ECO101 Macroeconomics provides the answers. There is some common ground with Modern Monetary Theory (MMT) but an even deeper incongruence.

One of the puzzles that accompany this gruelling economic crisis is why neo-liberal economic thinking, which when applied caused the crisis and has delivered very little to so many, remains the dominant paradigm in economic policy making and has managed to turn a disaster for practitioners of that ideology into a triumph. How is it that the leading voices now are preaching exactly the same policies that caused the crisis as the solution to the crisis. Is there that much asymmetry? I noted a recent comment on my blog (Tom) that raised issues relating to the philosophy of science along the lines of how are we to judge whether the mainstream macroeconomics paradigm has failed. I understand the demarcation issues involved and the problems of “truth testing”. But we can take a more simple approach to the question. Here are two ways we know that the mainstream approach failed – they didn’t have a clue what was happening in the years leading up to the crisis and now they are scrambling in a stunned state to add banks and financial markets to their defective models. The problem is that they are just building more defective approaches. But the continued dominance demonstrates that their failures are not yet fully understood.