For example, increasing the number of products offered in a category by a factor of four (say from fifty items to 200) without increasing total demand in the category would increase the coefficient of variation for each individual product by a factor of two.
( ( For example ) ( , ( ( increasing ( ( the number ) ( of ( products ( ( ( ( offered ( in ( a category ) ) ) ( by ( ( a factor ) ( of four ) ) ) ) ( -LRB- ( ( ( say ( from ( fifty items ) ) ) ( to 200 ) ) -RRB- ) ) ) ( without ( ( increasing ( total demand ) ) ( in ( the category ) ) ) ) ) ) ) ) ) ( ( would ( ( ( increase ( ( the coefficient ) ( of variation ) ) ) ( for ( each ( individual product ) ) ) ) ( by ( ( a factor ) ( of two ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN For) (NP (NN example))) (, ,) (S (VP (VBG increasing) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NP (NNS products)) (VP (VBN offered) (PP (IN in) (NP (DT a) (NN category))) (PP (IN by) (NP (NP (DT a) (NN factor)) (PP (IN of) (NP (CD four))))) (PRN (-LRB- -LRB-) (S (VP (VB say) (PP (IN from) (NP (JJ fifty) (NNS items))) (PP (TO to) (NP (CD 200))))) (-RRB- -RRB-)) (PP (IN without) (S (VP (VBG increasing) (NP (JJ total) (NN demand)) (PP (IN in) (NP (DT the) (NN category)))))))))))) (VP (MD would) (VP (VB increase) (NP (NP (DT the) (NN coefficient)) (PP (IN of) (NP (NN variation)))) (PP (IN for) (NP (DT each) (JJ individual) (NN product))) (PP (IN by) (NP (NP (DT a) (NN factor)) (PP (IN of) (NP (CD two))))))) (. .)))
An increasing number of products offered in a category will definitely not increase the total demand for the item in the category. 
( ( ( An ( increasing number ) ) ( of ( products ( offered ( in ( a category ) ) ) ) ) ) ( ( ( ( will definitely ) not ) ( ( increase ( the ( total demand ) ) ) ( for ( ( the item ) ( in ( the category ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT An) (VBG increasing) (NN number)) (PP (IN of) (NP (NP (NNS products)) (VP (VBN offered) (PP (IN in) (NP (DT a) (NN category))))))) (VP (MD will) (ADVP (RB definitely)) (RB not) (VP (VB increase) (NP (DT the) (JJ total) (NN demand)) (PP (IN for) (NP (NP (DT the) (NN item)) (PP (IN in) (NP (DT the) (NN category))))))) (. .)))