Risk tolerance refers to an individual's willingness and ability to bear risk when making financial decisions. It is an important concept in investment and financial planning, as it helps individuals and professionals determine the appropriate level of risk for an investment portfolio based on an individual's financial goals, time horizon, and ability to withstand potential losses. Research in risk tolerance focuses on understanding the factors that influence an individual's risk preferences, such as personality traits, financial literacy, and past experiences with risk. This research aims to develop tools and techniques to measure risk tolerance accurately and help individuals make more informed and suitable investment decisions. Overall, research in risk tolerance helps individuals and professionals better understand and manage the trade-off between risk and return in their investment decisions.