Some years ago, I promised to write about the – Cambridge capital controversy – which saw economists associated with Cambridge University in England and MIT in Cambridge, Massachusetts argue about the validity of neoclassical distribution theory. I never wrote the blog posts because I considered the material was a little difficult for a blog audience. Also, while of great interest to me, the topic was not necessarily compulsory reading for those trying to come to terms with Modern Monetary Theory (MMT). But today, I relent. For two reasons. First, I think my readership has reached much higher levels of economic literacy over the last 15 years and can handle a challenge. But, more importantly, there are times when the mainstream characters, who have been claiming that there is nothing new in MMT and that they knew it all along and all the important results can be explained within an orthodox New Keynesian approach, reveal their true colours. Their hubris sees them get ahead of themselves and they show they never really understood the basics that undermine their own approach. Such was the case this week when Paul Krugman declared the Controversy “a huge intellectual muddle” and “a tortured debate that illuminated nothing much”. Well, that just goes to show how the mainstream denial functions. A body of work comes along and blows the dominant paradigm out of the water, and the response is to ignore it as a meaningless muddle. Their current attacks on MMT are just another application of that approach, which I first encountered as a student while studying the capital debates. Given the complexity of this issue and the amount of material, this will be a two-part series. Today, we learn the historical context, which will convince you that this was not idle or arcane discussion. This was a debate that went to the heart of the existence of capitalism and the defenders of that system – the mainstream economists did everything they could to defend the myths that they had erected to make the system look fair. They failed but went on anyway. Here is Part 1.