there is inflation and deflation at the moment which is regarded as biflation. none essential goods are deflating and essential goods are inflating although aggregating in deflation. so it means that people are not buying things they want and having to spend more on things they need. so surely this is worse than either inflation or deflation because people aren't just spending less in general they are spending less on wants and more on necessities because the real cost of living is increasing. you might expect a reduction in wants in a recession because people tighten their belts but when needs appreciate it means it is more than that, perhaps supply side problems. so surely biflation is the worst sign of depression as wants have depreciated and the cost of needs has rocketed. just my opinion but i think it is a very bad sign.