...this pathbreaking study...sets out a new and compelling research agenda for understanding and analyzing industrial competition... Journal of Economic Literature ...this pathbreaking study...sets out a new and compelling research agenda for understanding and analyzing industrial competition...By capturing the competitive process of firms and industries in motion, the author provides a new view of the organization of industries that boldly challenges the traditional view of static and stable industrial organization. Rather, Baldwin argues and compiles compelling evidence suggesting that change is the rule and stability the exception...John Baldwin has paved the way for future researchers... Journal of Economic Litertature