Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Some new results on when extra risk strictly increases an option's value
AU - Huang, James
AU - Zhang, Deyuan
PY - 2013/1
Y1 - 2013/1
N2 - In this paper, we present some new results on when extra risk strictly increases an option's value. We give a necessary and sufficient condition for a mean-preserving spread to strictly increase an option's value. We also give a necessary and sufficient condition for a risk change to strictly increase the values of options with strike prices in an open interval while preserving the values of all other options. These two results significantly improve the results given by Rasmusen (2007) (When does extra risk strictly increase an option's value? Review of Financial Studies, 20, 1647–1667).
AB - In this paper, we present some new results on when extra risk strictly increases an option's value. We give a necessary and sufficient condition for a mean-preserving spread to strictly increase an option's value. We also give a necessary and sufficient condition for a risk change to strictly increase the values of options with strike prices in an open interval while preserving the values of all other options. These two results significantly improve the results given by Rasmusen (2007) (When does extra risk strictly increase an option's value? Review of Financial Studies, 20, 1647–1667).
U2 - 10.1002/fut.21556
DO - 10.1002/fut.21556
M3 - Journal article
VL - 33
SP - 44
EP - 54
JO - Journal of Futures Markets
JF - Journal of Futures Markets
SN - 0270-7314
IS - 1
ER -