Seems to me that those in the field of economics ought to be doing more of that, because I've been increasingly suspecting over the last few years that there is a crisis of confidence going on with respect to the understanding of some of the very basic concepts in the whole field.
I don't know that John Quiggin would agree, but I take support for my gut feeling from his recent post: The End of Interest. Some extracts:
Amid all the strange, alarming and exciting things that have happened lately, the fact that real long-term (30-year) interest rates have fallen below zero has been largely overlooked. Yet this is the end of capitalism, at least as it has traditionally been understood. Interest is the pure form of return to capital, excluding any return to monopoly power, corporate control, managerial skills or compensation for risk.I await his further posts with interest.
If there is no real return to capital, then then there is no capitalism. In case it isn’t obvious, I’ll make the point in subsequent posts that there is no reason to expect the system that replaces capitalism (I’ll call it plutocracy for the moment) to be an improvement.....
In thinking about the future of the economic system, interest rates on 30-year bonds are much more significant than the ‘cash’ rates set by central banks, such as the Federal Funds rate, which have been at or near zero ever since the GFC, or the short-term market rates they influence. These rates aren’t critical in evaluating long-term investments.
The central idea of capitalism is, as the name implies, that of capital. Capital is accumulated through saving, then invested in machines, buildings and other capital assets to be used by workers in producing goods and services. Part of the value of those goods and services is paid out as wages, and the rest is returned to capital, as interest on loans and bonds or as profits for shareholders. Some of the return to capital is saved and reinvested, allowing growth to continue indefinitely. Workers, on this account, can become capitalists too, by saving and investing some of their wages. At a minimum, they should be able to save enough, while working, to finance a decent standard of living in retirement.





