Hull: Options, Futures, and other Derivatives, Ninth Edition Chapter 21: Basic Numerical Procedures Multiple Choice est Ban!: "uestions 1. How many nodes nodes are are there at the end of a Cox-Ros Cox-Ross-Rubin s-Rubinstein stein ve-step binomial tree? A. 4 . ! C. " #. $ %. &hi'h of the followin( followin( 'annot 'annot be estimated estimated from from a sin(le binomial tree? tree? A. delta . (amma C. theta #. ve(a ). &hi'h of the the followin( is true for u in in a Cox-Ross-R Cox-Ross-Rubinstein ubinstein binomial binomial tree? tree? A. *t depends depends on the the interes interestt rate and and the volatil volatility ity . *t depends depends on the the volatilit volatility y but not the the intere interest st rate C. *t depends depends on the intere interest st rate but but not the volatil volatility ity #. *t depends on neither neither the interest rate nor the volatility volatility 4. How many di+erent di+erent paths are are there throu(h throu(h a Cox-Ros Cox-Ross-Rubi s-Rubinstein nstein tree tree with four-steps? A. ! . , C. 1% #. 1" !. &hen we move from from assumin( no dividends dividends to assumin( assumin( a 'onstant dividend dividend yield whi'h of the followin( is true for a Cox Ross Rubinstein tree? A. he para paramet meters ers u and and p 'han( 'han(e e . p 'han( 'han(es es but but u does does not not C. u 'han( 'han(es es but but p does does not not #. /eith /either er p nor nor u 'han 'han(es (es ". &hen the sto'0 pri'e pri'e is % and and the present present value of dividends dividends is % whi'h of the followin( is the re'ommended way of 'onstru'tin( a tree? A. #raw a tree tree for an initial sto'0 sto'0 pri'e of % and and subtra't subtra't the present present value of future dividends at ea'h node . #raw a tree tree for an initial sto'0 sto'0 pri'e of %% and and subtra't subtra't the present present value of future dividends at ea'h node C. #raw a tree tree with an initial sto'0 sto'0 pri'e of of 12 and add the present present value value of future dividends at ea'h node #. #raw a tree tree with an initial initial sto'0 pri'e pri'e of 12 and add add % at ea'h node node
$. &hat is the re'ommended re'ommended way of ma0in( interest interest rates a fun'tion fun'tion of of time in
a Cox Ross Rubinstein tree? A. 3a0e u a fun'tion of time . 3a0e p a fun'tion of time C. 3a0e u and p a fun'tion of time #. 3a0e the len(ths of the time steps uneual 2. &hat is the re'ommended way of ma0in( volatility a fun'tion of time in a Cox Ross Rubinstein tree? A. 3a0e u a fun'tion of time . 3a0e p a fun'tion of time C. 3a0e u and p a fun'tion of time #. 3a0e the len(ths of the time steps uneual ,. A binomial tree pri'es an Ameri'an option at 5).1% and the 'orrespondin( 6uropean option at 5).4. he la'0-7'holes pri'e of the 6uropean option is 5%.,2. &hat is the 'ontrol variate pri'e of the Ameri'an option? A. 5)." . 5).12 C. 5%., #. 5).2 1.he 'hapter dis'usses an alternative to the Cox Ross Rubinstein tree. *n this alternative whi'h of the followin( are true8 A. he relationship between u and d is8 u91:d . he relationship between u and d is8 u-191-d C. he probabilities on the tree are all .! #. /one of the above 11.&hi'h of the followin( 'annot be valued by 3onte Carlo simulation A. 6uropean options . Ameri'an options C. Asian options ;i.e. options on the avera(e sto'0 pri'e< #. An option whi'h provides a payo+ of 51 if the sto'0 pri'e is (reater than the stri0e pri'e at maturity 1%.&hi'h of the followin( is true? A. he impli'it nite di+eren'e method relates pri'es at one node to three pri'es at nodes at a later time . he impli'it nite di+eren'e method relates pri'es at one node to three pri'es at nodes at an earlier time C. he impli'it nite di+eren'e method relates pri'es at one node to three pri'es at nodes at the same time #. /one of the above
1).&hi'h of the followin( is true? A. he impli'it nite di+eren'e method is euivalent to usin( a trinomial tree
. he expli'it nite di+eren'e method is euivalent to usin( a trinomial tree C. oth methods are euivalent to usin( a trinomial tree #. /either method is euivalent to usin( a trinomial tree 14.he standard deviation of the values of an option 'al'ulated usin( 1 3onte Carlo trials is 4.!. he avera(e of the values is %. &hat is the standard error of this as an estimate of the option pri'e? A. 4.! . .4! C. .4! #. .4! 1!.he values of a sto'0 pri'e at the end of the se'ond time step are 52 51 51%!. he 'orrespondin( values of an option are 5 5! and 5% respe'tively. &hat is an estimate of (amma? A. .1)" . .14" C. .1!" #. .1"" 1".&hat is the di+eren'e between valuin( an Ameri'an and a 6uropean option usin( a tree? A. he value of u is hi(her for Ameri'an options . he value of u is lower for Ameri'an options C. he time steps for Ameri'an options are not eual #. *t is ne'essary to do two 'al'ulations at nodes where the option is in the money 1$.A 6uropean option on a sto'0 with a 0nown dollar dividend is valued by settin( the sto'0 pri'e variable eual to the sto'0 pri'e minus the present value of the dividend in the la'0-7'holes-3erton formula. A se'ond pri'e 'an be obtained usin( the tree buildin( pro'edure in the 'hapter. &hi'h of the followin( is true when a very lar(e number of time steps are used in the tree? A. he rst pri'e is hi(her than the se'ond pri'e . he rst pri'e is lower than the se'ond pri'e C. he rst pri'e is sometimes hi(her and sometimes lower than the se'ond pri'e #. he two pri'es are almost exa'tly the same 12.&hi'h of the followin( is possible in a modied Cox Ross Rubinstein binomial tree? A. he interest rate and volatility 'an both be fun'tions of time . he interest rate or the volatility 'an be a fun'tion of time but not both C. he interest rate 'an be a fun'tion of time but the volatility 'annot #. he interest rate and volatility must be 'onstant
1,.&hi'h of the followin( des'ribes the way that the parameters in a binomial tree are 'hosen? A. he expe'ted return durin( ea'h time step is the ris0-free rate . he standard deviation of the return in ea'h time step is for small time steps almost exa'tly eual to the volatility per annum times the suare root of the len(th of the time step in years C. he tree re'ombines #. All of the above %.&hi'h of the followin( 'an be valued without usin( a numeri'al pro'edure su'h as a binomial tree? A. Ameri'an put options on a non-dividend payin( sto'0 . Ameri'an 'all options on a non-dividend payin( to'0 C. Ameri'an 'all options on a 'urren'y #. Ameri'an put options on futures