Look back to the top-right panel of Figure. What proportion of Amazon€™s returns was explained by market movements? What proportion of risk was diversifiable? How does the diversifiable risk show up in the plot? What is the range of possible errors in the estimatedbeta?

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70- 60 50 40 30- 20 10 60 50 Amazon return, % Amazon return, % 30 β = 2.156 .436) (476) R2=.272 2어… R2=.297 . Market return, % Market return, % 30 -20 -10TO 20 30 30 2010 10 20 30 January 1999- December 2003 January 2004- December 2008 30- -40 -50 50 30 30- Disney return, % Disney return, % 20 R35 1 -30 -20 -10/ 20 101 β= 1.031 (208) 957 (155) R-.298 Market return, % Market return, % -30-20-10 10 20 30 10 20 30 January 1999- December 2003 20January 2004- December 2008 30- 30 Campbell Soup 201 . β=426 return % Campbell Soup 20 β-295 (.156) return, % (215) 10. 10 F-,064 1-r/Market return, % R2= .058 . rket return, % January 1999- December 2003 -10 January 2004- December 2008