In this paper we analyze the effects of the introduction (by either firms or authorities) of a composite good consisting of a fixed proportion of two imperfectly substitutable stand-alone products. First, we find that such a “cocktail” rises the Bertrand equilibrium prices as it introduces a certain degree of complementarity. It also creates incentives to price discriminate and products can be sold at a discount or at a premium (depending on their degree of substitutability) when they are used as part of the composite good. We consider two distinct forms of price discrimination: a traditional one, in which producers set their prices independently of each other and a coordinated one, in which producers cooperate (collude) when setting the price of the composite good. Composite goods might have either a positive or a negative impact on consumer surplus. The sign of the impact depends on the form of price discrimination and consumers tend to be better off if producers coordinate. The impact is also more likely to be positive if “cocktails are done right”, i.e., if their quality is high compared to the quality of the stand-alone products. © 2020, Springer-Verlag GmbH Austria, part of Springer Nature.
Alvisi, M., Carbonara, E. (2020). Cocktails done right: price competition and welfare when substitutes become complements. JOURNAL OF ECONOMICS, 2020, 1-38 [10.1007/s00712-020-00690-z].
Cocktails done right: price competition and welfare when substitutes become complements
Alvisi, Matteo;Carbonara, Emanuela
2020
Abstract
In this paper we analyze the effects of the introduction (by either firms or authorities) of a composite good consisting of a fixed proportion of two imperfectly substitutable stand-alone products. First, we find that such a “cocktail” rises the Bertrand equilibrium prices as it introduces a certain degree of complementarity. It also creates incentives to price discriminate and products can be sold at a discount or at a premium (depending on their degree of substitutability) when they are used as part of the composite good. We consider two distinct forms of price discrimination: a traditional one, in which producers set their prices independently of each other and a coordinated one, in which producers cooperate (collude) when setting the price of the composite good. Composite goods might have either a positive or a negative impact on consumer surplus. The sign of the impact depends on the form of price discrimination and consumers tend to be better off if producers coordinate. The impact is also more likely to be positive if “cocktails are done right”, i.e., if their quality is high compared to the quality of the stand-alone products. © 2020, Springer-Verlag GmbH Austria, part of Springer Nature.File | Dimensione | Formato | |
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