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EMAC 2019 Annual Conference


Worth the detour? The effect of marketplace sales on a retailer’s own channels
(A2019-4550)

Published: May 28, 2019

AUTHORS

Erik Maier, HHL Leipzig Graduate School of Management; Jaap Wieringa, University of Groningen

KEYWORDS

marketplace; Amazon; cross-channel elasticities

ABSTRACT

Online retailers are increasingly using marketplaces as alternative sales channel to their website. While cross-channel sales elasticities have been established for many endogenously related sales channel combinations (e.g., adding bricks to clicks), we lack insights on the effect of using two competing online channels (own website, marketplace). For instance, the marketplace might either cannibalize a retailer’s existing sales (e.g., because channel capabilities are similar) or complement a retailer’s offering (e.g., as gateway to the offered products). The present research investigates this phenomenon using time series of categorical sales data from one of the largest global marketplace sellers. Using vector autoregressive modelling, we find that marketplace sales increase visits to a retailer’s website, but also have a positive sales effect, if the product categories offered on the website are complementary to the ones offered on the marketplace.