Derive the demand curve for perfect substitutes

[@priyanandinibose2104]

how a perfect substitutes will have convex combination of x and y? won't it have concave preferences?

[@milosninkovic907]

Sir are you by any chance an Indian?

[@letsexplore8916]

It’s really helpful

[@nicolebenasa1302]

Thank you!

[@deltac34]

perfect, thanks

[@priyanandinibose2104]

Perfect complements has a fixed ratio. Perfect substitutes also has a fixed ratio? how? please help

[@mraooscar7257]

hi. what if the ratio is not 1:1? for example, 2:3?

[@maria_.-]

than it's not a perfect substitute anymore

[@Lucasplaysbass]

Maria P. Perfect substitutes are a fixed ratio, not just a 1:1 ratio