Since the Apple iPhone’s launch in 2007 in an exclusive arrangement with AT&T, it has garnered overwhelmingly positive responses from consumers and from the media. With its success, exclusive contracts between handset makers and wireless carriers have come under increasing scrutiny by...

We present a framework for modeling consumer adoption of multiple categories of technology products that may be related as complements (or substitutes). The context of technology products as well as the relationship between categories poses some unique challenges. First, the declining prices...

In this research, we provide a new method to estimate discrete choice models with unobserved heterogeneity that can be used with either cross-sectional or panel data. The method imposes nonparametric assumptions on the systematic subutility functions and on the distributions of the unobservable...

Most buyers are unaware that dealers can mark up interest rates for auto loans regardless of buyers' risk profiles, potentially leading to gender discrimination in the third most prevalent consumer debt category in the U.S. Using individual transaction-level data from a 20% random sample of U.S....

This paper develops a framework to measure "tipping" - the increase in a firm's market share dominance caused by indirect network effects. Our measure compares the expected concentration in a market to the hypothetical expected concentration that would arise in the absence of indirect network...

Our objective in this paper is to measure the impact of national online user reviews (valence, volume and variance) on Designated Market Area (DMA) level local geographic box-office performance of movies. We account for three complications with analyses that use national level aggregate...

Before the deregulation of Digital Subscriber Line (DSL) services by the FCC in 2005, phone companies were required to share their DSL bandwidth with independent DSL providers. However, despite the large number of independent providers that entered the market, phone companies accounted for 95.3%...

In this paper, we study the role of point-of-sale (POS) marketing mix variables in explaining variation in brand shares (i) at different retail formats, and (ii) across national and store brands in different price tiers. Stores in different retail formats differ in their positioning, the...

We develop a demand model for technology products that captures the effect of changes in the portfolio of models offered by a brand as well as the influence of the dynamics in its intrinsic preference on that brand's performance. In order to account for the potential correlation in the...

In recent years, pharmaceutical companies have increased their promotional expenditures, particularly on direct to consumer advertising (DTC) and detailing. Given the large dollar amounts involved, this study focuses on the likely effect of these expenditures on a firm's revenues. More...