Amarketing professor in ithaca, new york, maintains a museum of failed consumer products. most new products in this museum failed during the stage of new product development, when they are introduced to a limited geographic area

Test marketing stage

Explanation: Test marketing stage is the stage in which the sample of a product is introduced to the realistic marketing conditions and it is analyzed whether it will be able to perform as per the expectations or not.

   In the given case, the product is newly developed and is introduced to a limited geographical area, means, the sampling is done.

Hence, the stage here refers to test marketing stage.

answer; monopolistic competition;

answernet income for 2017 will be greater if the inventory quantity declines;