I think the key to demonstrating observed behaviors is rewards.
Answer:
Road building and purchasing military equipment are examples of purchasing by government.
Explanation:
The government is responsible for the purchasing of military equipment and road building.
This purchases fall under the category of gross investment expenditures.
Investment meaning that the government treats this as its own assets.
The government also purchases infrastructure projects where roads fall into and also payrolls of civil servants.
The size of the empire, at its prime it comprised of 60 million people and a territory of 2 million square miles -- for comparison, the contiguous area of the US, that is, without Alaska and Hawaii is 3.1 million square miles. The Roman Empire was mostly formed by conquered peoples and terriotories, so civil wars and rebellions against a state that had became bureaucratic and demanded lots of taxes was quite common, also the size of the state permitted that the different tribes from the north, the so-called barbarians would attch from different points, so basically a gigantic state which had to deal with internal an external problems is the cause of this difficulty.
