jolo said:The republic to empire switch really had desastrous consequences - moving the capital from the largest city in the western hemisphere to a much smaller city in Asia sure was a set back. Keeping prices down by enforcing price limits also was a big problem for economic development. Even more desastrous was the decision to allow people to only work in the trades of their parents. If it's not an urban myth, aluminum was apparently invented by a Roman - who was killed because the Roman Emperor believed the value of his silver coins would drop if people could make a silver-like metal from clay. And so on.
Disastrous consequences?
When exactly? The empire prospered for well over two hundred years. You might as well blame the American revolution for 9/11, the Norman Conquesr of England for the Black Death or the Potato War for the Holocaust.
The stories about holding back innovations are quite likely to be just stories, even if they are not they tell us nothing about the merits of imperial vs republican rule - all societies have vested interests against innovation.
In practice the central government was irrelevant to most people's lives, until the 4th century the cities were self-governing anyway. Imperial power was irrelevant on a day to day basis save for the general security it brought.
The lack of a Roman industrial revolution should not be looked for in its mode of government but rather in simple lack of technological and institutional development, for which the reasons are likely to be as simple as, that they did not get round to it. Considering the six hundred year gap between the development of the medieval western European banking system and the industrial revolution this should not be seen as a complete surprise.