Indifference curves used in portfolio theory relate risk and return. How is the portfolios risk measured? If

Question:

Indifference curves used in theory relate risk and return. How is the portfolio’s risk measured? If one investor’s indifference curves are steeper than another investor’s, what does that indicate about their respective willingness to bear risk?

Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...