Slopes of the best response

The expression says that the slopes of the best response functions are negative, which implies an intuitive result that each player s best response is monotoni-cally decreasing in the other player s strategy. Figure 2.2 presents this result for the symmetric newsvendor game. The equilibrium is located on the intersection of the best responses and we also see that the best responses are, indeed, decreasing. 

Returning to the newsvendor game example, we have found that the slopes of the best response functions are... 

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