(a) If investors become more jittery (more risk-averse) about investing in the stock markets based on new growth fears about the U.S. and global economies, then what will happen to current stock prices and expected stock returns according to the predictions of the Capital Asset Pricing Model (CAPM)?
(b) Also, some may describe CAPM in a simple, non-technical way that it rewards investors for "waiting and worrying about their investments". Discuss what CAPM variables may correspond to the waiting part and worrying part of your invested money. Limit your answers to no more twelve sentences.