Signs of a downward spiral of deflation in China's economy is emerging. This casts doubt on the future of the world's second-largest economy and prompts demands for swift intervention. While wages are falling, data released on Monday showed that consumer price increase was almost nonexistent through much of the economy, with the exception of food prices. Bloomberg economics and experts at BNP Paribas predict that the gross domestic product deflator, a more comprehensive indicator of economic prices, would likely continue its current five-quarter decline until 2025. That would be the longest period of deflation in china since data tracking started in 1993. It's a cycle the world has seen before in japan, starting in the 1990s during a period that came to be known as its "Lost decades."