求助一道英语经济题Fresh food products deteriorate quickly in people's homes.Customers need to visit shops which sell fresh food frequently.How would demand for the shop's packaged goods( non-fresh fodd) be affected if they didn't stock the f

求助一道英语经济题
Fresh food products deteriorate quickly in people's homes.Customers need to visit shops which sell fresh food frequently.How would demand for the shop's packaged goods( non-fresh fodd) be affected if they didn't stock the fresh food products?

fresh food and packaged goods( non-fresh fodd) are Substitutes. So if fresh food products were not privided anymore, the demand for te packaged goods( non-fresh fodd) will go up.
The demand curve for the packaged goods will move to the right.