Monopolistic markets are more desirable because they do not collude and therefore the competition is real unlike oligopolies. This competition causes the monopolistic markets to compete with each other and lower the prices as well as innovate their products.

Oligopolies are more desirable because they offer convenience to the consumer as there is everything in one place

A mixed economy is more appropriate for economic development because people have more of a variety of products when choosing to satisfy their wants and needs. An example of this could be education, therefore people can choose the education they want to receive and what they can afford. Another is the quality of health care. Therefore by being able to make these choices people do what is best for them. Overall increasing the living standard, thereby increasing the HDI of a country.

Planned economy is optimal for economic development because everyone is employed. Therefore everyone has an income, which increases the standard of living. Another reason is that everyone receives education as in a planned economy everyone is equal. Since everyone is educated, the country's HDI rises, therefore there is more economic development,