That is the new James C. Scott book, and so far it is the most interesting non-fiction read of the year (I am about halfway through). You can think of it as an extended essay on which technologies actually gave rise to economies of scale, expressed through governance but not only. Ultimately the focus settles on Mesopotamia, but the discussion is wide-ranging and the lessons are applicable to much of human history. Here is an opening summary bit:
I propose that cereal grains have unique characteristics such that they would be, virtually everywhere, the major tax commodity essential to early state building. I believe that we may have grossly underestimated the importance of the (infectious) diseases of crowding in the demographic fragility of the early state. Unlike many historians, I wonder whether frequent abandonment of early state centers might often have been a boon to the health and safety of their populations rather than a “dark age” signaling the collapse of a civilization. And finally, I ask whether those populations that remained outside state centers for millennia after the first states were established may not have remained there (or fled there) because they found conditions better.
Here is one good passage:
It is surely striking that virtually all classical states were based on grain, including millets. History records no cassava states, no sago, yam, taro, plantain, breadfruit, or sweet potato states. (“Banana Republics” don’t qualify!) My guess is that only grains are best suited to concentrated production, tax assessment, appropriation, cadastral surveys, storage, and rationing. On suitable soil wheat provides the agro-ecology for dense concentrations of human subjects.
In contrast the tuber cassava (aka manioc, yucca) grows below ground, requires little care, is easy to conceal, ripens in a year, and, most important, can safely be left in the ground and remain edible for two more years. If the state wants your cassava, it will have to come and dip up the tubers one by one, and then it has a cartload of little value and great weight if transported.
The discussion of how the technology of fire is the ultimate root of economies of scale is alone worth the price of the book. Scott analogizes complacency/peace to the domestication of non-human animals, including the phenomenon of less violent emotional reactions and greater conformity.
Urgently recommended, and fun to read as well.