Whether or not he is ' morbidly obese ' isn ' t what ' s he ' s struggling with . OP , you don ' t have an inlaw problem , you have a wife problem . It ' s her family , and she needs to handle them . It ' s not for her to decide what sort of feelings you ' re allowed to have , as your partner she needs to have your back . You need to sit down and have a serious chat with her and spell it out . <| sep |> To answer your question , a percentage decrease on the ytm has a greater effect on the price increase of bonds vs the same amount of percentage increase in ytm . So if the pv for both bonds is the same , par value of the discount bonds must be higher given all else is equal . Also , you can use your financial calculator to solve for FV for each bond