Advertising Good or Bad

Topics: Economics, Cost, Marginal cost Pages: 2 (741 words) Published: March 8, 2013
Advertising – Good or Bad?
This week  I continue my series on the economics of advertising. Adding on to the introduction of the informative and persuasive view that I wrote about in my previous article, let’s proceed to consider some more specific contributions, and advertising’s potential influence on welfare. Have economists been able to come to a sweeping conclusion about the very unusual good ‘advertising’? The answer to the above question is obviously ‘no’. Rarely do economists come to a sweeping conclusion about some phenomenon. As per usual, the answer is ‘it depends’. Kaldor (1950) brings a hallmark discussion to the economics of information. In this paper Kaldor argues for the persuasive nature of advertising and its uninformative nature. In particular an important insight is of the economies of scale in advertising. Informally this amounts to claiming that there are cost advantages to expanding and producing more. Intuitively, think of a local supermarket which advertises in the local newspaper every day for some inelastic price. This would mean, the more goods the supermarket brings in and sells, the lower the average cost of advertising (ignore demand and assume consumers can absorb the production). This insight implies that advertising may lead to lower prices in the market as quantity expands, especially if these economies of scale effects are significant. However, Kaldor also claims that if advertising builds brand loyalty it may lead to higher prices (i.e. if advertising buys the firm some sort of monopoly power). Not surprisingly, welfare analysis results are quite equivocal in the literature. Dixit and Norman (1978) offer a model to examine the welfare effects of advertising to find that advertising is in general ‘excessive’ (not optimal for social welfare) in a monopoly setting. This finding however, assumes that the pre-advertising tastes of consumers are socially optimal, which is questionable. Later works examining the impact of...
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