RESEARCH / DIGITIZATION · MIS QUARTERLY · 2026
The Digital Privacy Paradox and Choice Architecture: Evidence from an Experiment in Fintech
Summary
A field experiment built into the rollout of a digital wallet to thousands of MIT students. People who say they care about privacy relinquish private data for small incentives, convenience, or reassuring but irrelevant information — and telling them more about the trade-offs does not close the gap between stated and revealed preferences, challenging notice-and-choice as a safeguard.
As an increasingly large share of economic and social activity is digitized, and as devices, platforms and governments collect more information about our preferences and behavior, it has become apparent that effectively protecting our digital privacy is often too costly or impractical. The decentralized networks of exchange that can be built using blockchain technology have the potential to challenge not only the revenue models of traditional intermediaries, but also their control over the underlying data and digital assets. This can increase competition and the degree of privacy users enjoy when transacting in these new marketplaces. At the same time, for these privacy-enhancing technologies to diffuse, consumers need to care about privacy to begin with. In the paper, we study this in the context of the selection of a digital wallet, and find that whereas consumers say they care about privacy, they are willing to relinquish private data quite easily in exchange for convenience, small incentives or reassuring but irrelevant information. Furthermore, key safeguards from the 1974 Privacy Act such as `Notice and Choice’ are unlikely to be effective, as providing more information about privacy trade-offs does not reduce the tendency of consumers to go against their own stated preferences about privacy. Because of this discrepancy between stated and revealed preferences, policymakers may either question the reliability of the first, or worry that current approaches do not allow consumers to make informed choices. Online, when attention is scarce, small changes in navigation have large effects on choices, and consumers may need to be protected from their willingness to share data in exchange for small incentives.