Most of the rest of the developed and developing world is either depopulating or is relying on immigrants to keep population from crashing. So the Western European and developing Asia model is a total failure at the most basic level: reproductive success. Until such models are scrapped the downturn is going to continue. There are several mechanisms speeding up this process. One of these mechanisms is automation and robotization of the workforce. One of the unstated reasons for the housing bubble is automation of construction. Labor as a percentage of cost per square foot is going down. Nail guns, truss factories and similar labor saving devices are becoming more common. Another reason that gets a lot of attention is the use of financing gimmicks to free up lending capital. Still another reason is the use of the internet to eliminate middlemen as with Lending Tree and no doubt other linkages in other areas such as material supply for example. The use of direct linkages and containerization means that most of the wood used east of the Mississippi is from west of the Mississippi. (Temperate zone rain forests on mountains makes for fast growing cheap timber from roughly San Francisco to the Alaskan pandhandle.) Still another factor is the use of modular construction most famously with mobile homes but also shipping containers and purpose built plug and play modules. This trend will grow as well as part of the product life cycle. All three of these mechanisms and many more are in operation throughout the world's economy and they will continue to force change until reproduction rates get back up to at least ZPG.