Country A has 100b$ trade deficit against Country B, and Country
B has 200b$ trade surplus against Country C, and Country C has
150b$ trade surplus against Country A. Moreover, assume that
Country B has a balanced trade with other countries (countries
other than A and C), but Country A has 100b$ trade surplus against
other countries (countries other than B and C) and Country C has
100b$ trade deficit against other countries (countries other than A
and B). Then,...