Since Henry Ford first adapted the conveyor belts of grain factories to create an assembly line, there have been several modifications of that basic concept, each of which has made it possible for today’s manufacturers to produce goods from spaceships to cotton balls. Identify four significant new manufacturing process that rely on new technologies and the manufacturing subsectors they affect, and discuss at least one specific application in manufacturing for each technology.

Alaska king crab fishing in the 1960s and '70s was a dangerous but rich fishery. boats from as far away as california and japan braved the treacherous gulf of alaska crossing to reach the abundant king crab beds in cook inlet and bristol bay. suddenly, in the early 1980s, the fishery crashed due to over fishing. all crabbing in those areas ended. to this day, there is no crabbing in bristol bay or cook inlet. a. how would an economist explain the decline of the alaska king crab fishery