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To assess the ability of resting-state functional magnetic resonance imaging to distinguish known risk factors for AD, we evaluated 17 cognitively normal individuals with a family history of AD and at least one copy of the apolipoprotein e4 allele compared to 12 individuals who were not carriers of the APOE4 gene and did not have a family history of AD.(More)
Functional MRI has demonstrated differences in response to memory performance based on risk for Alzheimer's disease (AD). The current study compared blood oxygen level dependent (BOLD) functional MRI response with arterial spin labeling (ASL) perfusion response during an associative encoding task and resting perfusion signal in different risk groups for AD.(More)
This article summarizes and draws connections among diverse streams of empirical and theoretical research on the economics of privacy. Our focus is on the economic value and consequences of privacy and of personal information, and on consumers' understanding of and decisions about the costs and benefits associated with data protection and data sharing. We(More)
Mild cognitive impairment (MCI) appears to be a transitional stage in the development of Alzheimer's disease (AD). Patients with MCI show impaired memory performance and hippocampal atrophy relative to normal elderly controls. Prior studies indicate that the degree of hippocampal atrophy in MCI patients predicts conversion to AD. In contrast to patients(More)
This paper seeks to make two contributions. First, we propose and analyze a tractable model of strategic play in which players behave as if their expectations about their opponents' behavior vary with their own choices. We refer to this nonstandard updating as magical thinking. The model provides a unified view of documented behavior in a range of(More)
When a firm is able to recognize its previous customers, it may use information about their purchase histories to price discriminate. We analyze a model with a monopolist and a continuum of heterogeneous consumers, where consumers are able to maintain their anonymity and avoid being identified as past customers, possibly at an (exogenous) cost. When(More)
This paper studies the effects of the transparency of an outside option in bilateral bargaining. A seller posts prices to screen a buyer over time, and the buyer may receive an outside option at a random time. We consider two information regimes, one in which the arrival of the outside option is public and one in which the arrival is private. The public(More)
Smart shape-memory polymers can memorize and recover their permanent shape in response to an external stimulus (for example, heat). They have been extensively exploited for a wide spectrum of applications ranging from biomedical devices to aerospace morphing structures. However, most of the existing shape-memory polymers are thermoresponsive and their(More)
This paper suggests a novel way to import the approach of axiomatic theories of individual choice into strategic settings and demonstrates the benefits of this approach. We propose both a tractable behavioral model as well as axioms applied to the behavior of the collection of players, focusing first on Prisoners' Dilemma games. A representation theorem(More)