Answer:
There are many factors that could continue to limit changes in the North Korean economy. One major factor is the country's political system, which is highly centralized and tightly controlled by the government. This limits the ability of private enterprise to develop and grow, and makes it difficult for foreign companies to invest in the country. Additionally, North Korea's isolation from the global economy and its lack of access to international markets and technology could also limit its economic growth. Finally, economic sanctions imposed by other countries could further limit North Korea's ability to trade and engage with the global economy.