We drawo n a three-dimensiopnaanl eld atasetw ithi nformatioon shelfp ricesa nda vailable
couponsf or2 5 RTE breakfascte realp roductisn u pt o6 5 citiesf ore veryq uartefrr omth eb eginning
of 1989 untilt hee nd of 1992.F or example,in a givenq uarterw e mighto bserves omec itiesi n
whicht herew as a coupond istributefdo ra particulabrr anda nd otherc itiesi n whicha coupon
was notd istributefdo rt hatb randW. e compares helfp ricesu ndert het wos cenariosT. he static
monopolyp riced iscriminatitohne orypr edictas (weaklyp) ositivec orrelatiounn dera broads eto f
assumptionSs.i ncec oupona ndp riced ecisionsa rem ades imultaneousliyti ,s necessaryto c ontrol
forc ommons hockst o demando r costst hatm aya ffecbt othd ecisionsW. e do so by exploiting
thep aneln atureo ft hed ataset