Economics stresses interactions among people that involve: concern for others. coercion. voluntary exchange. envy. Choose the most correct answer by clicking a button, or by typing a letter from the keyboard and pressing the tab key. The two sectors on a simple circular flow diagram are: the private sector and the public sector. the domestic sector and the foreign sector. households and businesses. consumers and savers. Choose the most correct answer by clicking a button, or by typing a letter from the keyboard and pressing the tab key.