The performance of the economic system can be measured through gross domestic product (GDP); that is, it will indicate the growth rate of country.
Theoreticians regularly try to evaluate both the positive and normative aspects of the economic system in general and they do so by making assumptions about the rules of the game governing utility-seeking.
Marxist culture of the 1930s, which associated markets with labor exploitation, obligated Stalin to adopt administrative command planning, and inhibited reform until attitudes softened under Khrushchev a quarter century later.
With the proper guide, one is able to do normative assessments, that is measuring the potential, the moral and ethical reasoning of an economic system.
Systems can be measured relative to the achievement of the rivals and normative assessments can be done based on statistics of the living standard, the gap of income and wealth distribution and the level of unemployment The modeling of comparative economic is strongly affected by the perceptions on which accepted cultural, political and ethical motives are the most predominant as well as the importance of the demand and supply side factors.
Despite huge economic inferiority, countries like Germany and Japan were at the brink of complete success before World War II.
However, having a small army force and a lack of military weapons put an end to the success that was previously within their grasp during the first period of the war.