The 21st century has seen a number of important developments in the field of microeconomics, as technology continues to advance and change the way economies function.

Some of the key expected changes in microeconomics in the 21st century include:
- Increased use of big data and analytics: In the 21st century, it is expected that big data and analytics will play a larger role in microeconomics. This will likely involve a greater emphasis on the development of policies and regulations to support the use of big data and analytics, as well as the promotion of best practices for the use of big data and analytics. This will likely lead to more accurate and efficient decision making, but also new challenges such as data privacy and security.
- Increased focus on behavioural economics: In the 21st century, it is expected that behavioural economics will become increasingly important in microeconomics. This will likely involve a greater emphasis on the development of policies and regulations to support the use of behavioural economics, as well as the promotion of best practices for the use of behavioural economics. This will likely lead to a more accurate understanding of consumer behaviour, but also new challenges such as ethical considerations.
- Increased focus on the sharing economy: In the 21st century, it is expected that the sharing economy will become increasingly prevalent in microeconomics. This will likely involve a greater emphasis on the development of policies and regulations to support the sharing economy, as well as the promotion of best practices for the sharing economy. This will likely lead to more opportunities for self-employment, but also new challenges such as lack of job security and benefits.
- Increased focus on the gig economy: In the 21st century, it is expected that the gig economy will become increasingly prevalent in microeconomics. This will likely involve a greater emphasis on the development of policies and regulations to support the gig economy, as well as the promotion of best practices for the gig economy. This will likely lead to more opportunities for self-employment, but also new challenges such as lack of job security and benefits.

- Increased focus on the use of digital platforms: In the 21st century, it is expected that digital platforms will play a larger role in microeconomics. This will likely involve a greater emphasis on the development of policies and regulations to support the use of digital platforms, as well as the promotion of best practices for the use of digital platforms. This will likely lead to more opportunities for remote work and collaboration, but also new challenges such as data privacy and security.
- Increased focus on the use of AI and automation: In the 21st century, it is expected that AI and automation will play a larger role in microeconomics. This will likely involve a greater emphasis on the development of policies and regulations to support the use of AI and automation, as well as the promotion of best practices for the use of AI and automation. This will likely lead to more efficient and accurate decision making, but also new challenges such as job displacement and ethical considerations.
- Increased focus on the use of digital currencies: In the 21st century, it is expected that digital currencies will play a larger role in microeconomics. This will likely involve a greater emphasis on the development of policies and regulations to support the use of digital currencies, as well as the promotion of best practices for the use of digital currencies. This will likely lead to more opportunities for financial inclusion, but also new challenges such as regulatory compliance and security.
- Increased focus on the use of smart contracts: In the 21st century, it is expected that smart contracts will play a larger role in microeconomics. This will likely involve a greater emphasis on the development of policies and regulations to support the use of smart contracts

In conclusion, the 21st century is expected to see a number of important developments in the field of microeconomics. These changes are aimed at providing individuals and businesses with new ways to improve their economic decision making and adapt to changing technology, and addressing global issues such as automation and the gig economy. The focus of microeconomics will continue to evolve in the 21st century as technology and the global economic landscape changes and new challenges arise. It’s important for individuals and organisations to stay informed and adapt to these changes in order to remain competitive and successful in the future.