An economic crash is just as necessary as economic booms. Trying to pump the economy with all means possible is unsustainable. Squeezing the maximum amount of productivity from every worker will cause a population crisis, forcing everyone into cities will cause a population crisis, dirt poor wages and sky high rent will cause a population crisis.
Eventually the economy crashes but it gives the country a bit of breathing room. They can finally enact some changes and stimulus to rejuvenate it.
We will still need to wait and see the effects of advanced ai however.