The way in which the political left conceptualizes an economy is a variation on how technocrats more generally conceptualize it. The left imagines the economy as possessing a kernel of processes that take inputs and produce outputs based upon purely technologic considerations. What distinguishes these processes as a kernel is that they are jointly self-sustaining; setting aside natural resources, the kernel produces everything necessary to maintain itself. Depending upon technology, the kernel may do nothing more than to sustain itself. The left often imagines an economy that does nothing more as a subsistence economy; but, as a matter of logic, they might imagine an economy as technologically constrained to produce exactly what it does to continue replicating itself, yet providing a fairly high standard of living. In any case, they more often imagine the kernel as producing a surplus, which is to say production above and beyond that necessary to sustain the kernel. Allocation and composition of the surplus is imagined to be determined not just by technologic considerations, but also by social power. This is why the left often does believe and still more frequently seems to believe that economics is a zero-sum game; they believe that for some people to get more, they must either leave less of the surplus for others or, still worse, must reduce the kernel. Because performance of the kernel is imagined to be determined purely by technologic factors, while it may be acknowledged that in our world resources have been priced largely by markets and hence inputs have been determined largely by markets, it is believed that, ultimately, the markets had little real choice; that they had to settle on relative prices that simply conformed to technologic considerations. The imagined kernel is as if an inflexible machine, however complex it may be. It is only pricing of commodities within the surplus that is imagined to be flexible.
The lock-downs that have been the political response to the SARS-CoV-2 pandemic are variously imagined either as shutting down production outside the kernel, with economic activity labelled as
essential continuing, or indeed as going further to shut-down much of the kernel itself. As the lock-downs come to an end, it will be expected by many — including many not on the political left — that the economy will pick-up at about where it was before the lock-downs. If one imagines the proper inputs to each part of the kernel (or of the economy more generally) as technologically determined, then restarting the economy is a simple matter of resuming those proper inputs. If the kernel is believed to have been kept in operation, then what remains is again to allocate the surplus roughly as it was, or (in keeping with left-wing values) with a greater share given to those who are not wealthy.
The economy will not pick-up where it left-off, because the technocratic conception in general and the left-wing conception in particular are so terribly wrong. But the political left will diagnose the failure to restore the economy quickly as
a failure of capitalism — either to solve a problem of technologic programming or to produce a
socially just or
fair division of the surplus. And, so, they will demand that the state become further involved, to take greater command of those industries that they regard as within the kernel, to strengthen worker unions, to establish floors on wages and both floors and ceilings on salaries, and to redistribute income through transfer programmes.