A nice post, except there are discernable general times and places where the economy begins and ends. It begins with the individual with spendable money in his/her hands and it ends with them actually exchanging that money for goods and services at retail sale. Knowing these two points enlightens us as to where and when to implement macro-economic policy with its greatest effectiveness, and is also why a universal dividend and a discount at the point of retail sale are the best solutions to our modern economy’s most chronic problems, namely a scarcity of individual incomes and price inflation. This unvarnished insight about starting, changing and stopping is actually one of the oldest observations by Man and is referred to as the cycle of action of the physical universe mentioned in the Vedas many thousands of years ago. The economy IS complex, but it still has known places where policy can best be implemented.