In The Surprising Breadth of Harbingers of Failure (Sci-Hub mirror), a trio of economists and business-school profs build on a 2015 Journal of Marketing Research paper that claimed that some households' purchasing preferences are a reliable indicator of which products will fail -- that is, if households in a certain ZIP code like a product, it will probably not succeed. The original paper calls these "harbinger households."

In the new paper, the researchers consider very large data-sets on consumer goods and fashion purchasing, house-buying, and political donations, to examine whether being a "harbinger household" correlates to other predictors of failure, and find that these households are also likely to buy real-estate that makes lower profits (or generates larger losses) than nearby properties; they are likely to buy fashion and consumer goods that get discontinued due to lackluster sales; and they are more likely to donate to losing politicians' campaigns than winners.

The researchers also claim that harbinger households voluntarily cluster: that when a harbinger household moves, it is likely that it will move to another habringer ZIP code (and nonhabringers move to nonhabringer households). Moreover, harbingers don't appear to learn their preferences from one another -- a nonhabringer household that locates in a harbinger ZIP code doesn't alter its purchasing and political contributions to "loser" products and candidates.

Harbinger households tend to be white, suburban and headed by older, less-educated single parents. They tend to make above-average use of coupons, and the coupons they use have above-average values.

The researchers don't claim a causal relationship between these different factors -- donating to losing political candidates doesn't make you prefer Crystal Pepsi, for example -- but rather speculate that there is an "unobserved intervening variable" that explains both factors.

Using data from multiple sources, we have shown that the phenomenon of harbingers is surprisingly widespread. We begin by showing that harbinger zip codes exist. Households in these zip codes are more likely than households in other zip codes to purchase new products that fail. Their adoption of a new product is a signal that the new product will fail. We interpret this finding as evidence that households in these zip codes have tendencies that are not representative of households in other zip codes. We then show that the evidence of unusual tendencies extends across retail product categories and across retailers.

What makes these results particularly surprising is that while we measure the average outcome for a zip code, relatively few households in each zip code participate in each decision. Not every household purchases from the retailers that we study, and relatively few households contribute to congressional election candidates. Moreover, the households that participate will often be different households for each decision. Itis unlikely that the households that purchase from one retailer are all the same households that purchase from the other retailer. They are also unlikely to all make donations to congressional election campaigns. Despite this, we observe similarities in zip code–level decisions across these different purchasing contexts.



We explore two explanations for why households with unusual tendencies cluster together. This analysis uses a sample of households that changed zip codes and reveals that house-holds that moved from a harbinger zip code tended to move to another harbinger zip code. Similarly, households that started in a nonharbinger zip code generally moved to another non-harbinger zip code. This suggests that harbinger zip codes arise at least in part from customers choosing to cluster with other households that have similar tendencies. We did not find any support for the alternative explanation that customers learn their tendencies when they move into a harbinger zip code. It appears instead that harbinger tendencies are relatively sticky and that harbinger households bring their tendencies when they change zip codes, rather than learning them when they get there.

The Surprising Breadth of Harbingers of Failure [Duncan I. Simester, Catherine E. Tucker and Clair Yang/Journal of Marketing Research] (Sci-Hub mirror)

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