In this demonstrated figure kinked demand curve model, when a firm at point a raises or lowers its price and the rest of the firms in the industry do similar thing, in that case the relevant demand curve for the firm is: (w) demand curve D0. (x) demand curve D1. (y) demand curve D2. (z) demand curve D3.
![241_Kinked Demand Curves.png](https://secure.tutorsglobe.com/CMSImages/241_Kinked%20Demand%20Curves.png)
Can anybody suggest me the proper explanation for given problem regarding Economics generally?