Of course, Spud gets this wrong
In this case, Bush fails to explain what economists call Baumol’s cost disease. This explains why services such as healthcare, education, social care and the arts tend to become more expensive over time, even when their productivity does not improve. The reason should be obvious, but like many things that should be, it is hiding in plain sight.
The reality the so-called disease highlights is that, over time, the manufacturing sector in an economy can become more productive because technology lets each worker produce more. Wages can therefore rise without prices rising by the same amount. So far, so good.
The problem is that many services cannot increase productivity so easily. A teacher still needs time to teach a class, a carer needs time to care, and a string quartet still needs four musicians and almost exactly the same time to perform, or the result might be truly terrible. But, and this is the crucial point, if we still want those services, the workers engaged in them must nevertheless receive wages comparable with those available elsewhere, or they will leave. The cost of providing their services does, therefore, inevitably rise even though their output per hour has changed little.
The crucial point is that in this case rising costs do not necessarily indicate inefficiency. They may instead reflect the inherently labour-intensive nature of valuable services.
Yes, very good. But it works through wages rising. And as Spud tells us all the time wages have not been rising. Therefore Baumol doesn’t apply.
