Emissions trading systems are being used worldwide to help shift towards cleaner energy and boost economic growth. These systems influence how companies act and what consumers want by putting a price on greenhouse gas emissions. They offer unique benefits like deciding who gets emission allowances and how to link markets between different places. The systems also cause carbon prices to fluctuate, affecting how businesses plan and invest. Understanding both individual and big-picture behaviors is vital. A collection of research papers and recent studies looks into emissions trading systems and their impacts, offering insights for future studies.