Procyclical:
Procyclic describes a state where behavior and actions of a measurable product or service move in tandem with the cyclical condition of the economy. [Investopedia]
Noted in “‘Covid baby bust’ could lead to half a million fewer births next year,” Christopher Ingraham, WaPo:
The reason? Children are expensive, and having a child is in many ways a financial decision. The loss of a job or otherwise uncertain prospects for a steady income lead many would-be parents to postpone having kids until things are more settled. In economic jargon, birthrates are “procyclical” — they tend to rise during times of economic growth and fall during recessions.