When the risk-adjusted real interest rate of an economy falls below the rate of deflation, what incentive is there to loan? If you say none, then this leads to higher rates of deflation, which mean more deflation and hence the proverbial deflationary spiral. With inflationary prices, even if the real interest rate is negative, there is still an incentive to give loans (or using a bank via CDs/time-deposits/savings-accounts, etc). Thanks
Instead, suppose the economy is contracting for whatever reason, perhaps a natural disaster or a lack of good ideas. Due to the economy contracting, the demand for goods is lowered and, hence, prices go down. When prices go down, the rate of deflation increases, thus exacerbating the situation. Is this not the case?
But that's a good thing. If the economy is contracting for whatever reason, perhaps a natural disaster, then you want people to save more in order to more comfortably weather the storm. In such a case you want the non essential jobs to be lost and more essential jobs gained.
For example, right now the FED is trying to reinflate a bubble when even though it would be a crushing blow to the economy what we really need is to stop inflating and start restructuring the unproductive sectors that are wasting misallocated resources and free those up for the productive part of the economy. A lot of jobs would be lost, a lot of wealth would get destroyed through debt liquidation but hey at least we'd get to the bottom and to a sound foundation for renewed growth again.