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作者：Aouad, Ali; Farias, Vivek; Levi, Retsef
作者单位：University of London; London Business School; Massachusetts Institute of Technology (MIT)
摘要：Consider-then-choose models, borne out by empirical literature in marketing and psychology, explain that customers choose among alternatives in two phases, by first screening products to decide which alternatives to consider and then ranking them. In this paper, we develop a dynamic programming framework to study the computational aspects of assortment optimization under consider-then-choose premises. Although non-parametric choice models generally lead to computationally intractable assortmen...
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作者：Zhou, Frank S.
作者单位：University of Pennsylvania
摘要：This paper examines whether investor learning about profitability (i.e., the mean of earnings distribution) leads to persistence in disclosure decisions. A repeated single-period model shows that persistent investor beliefs about profitability lead to persistent disclosure decisions. Using earnings forecast data, I structurally estimate the model and perform several counterfactual analyses. I find that, when investors are assumed to know profitability, the persistence of management forecast de...
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作者：Ely, Jeffrey; Galeotti, Andrea; Steiner, Jakub
作者单位：Northwestern University; University of London; London Business School; Czech Academy of Sciences; Economics Institute of the Czech Academy of Sciences; Charles University Prague; University of Zurich
摘要：To prevent the spread of an infection, an organization obeys social distancing restrictions and thus limits the number of its members physically present on a given day. We study rotation schemes in which mutually exclusive groups are active on different days. The frequency of rotation affects risk over the duration of diffusion prior to the time the organization is able to react to the infection. If this reaction time is speedy, then such risk is undesirable because prevalence is initially con...
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作者：Bricker, Jesse; Krimmel, Jacob; Ramcharan, Rodney
作者单位：Federal Reserve System - USA; University of Pennsylvania; University of Southern California
摘要：This paper investigates the importance of status in household consumption and credit decisions using data from the Survey of Consumer Finances linked to tract-level data in the American Community Survey. We find that relatively richer households in the census tract use more debt and spend more on high-status cars. Also, county-level evidence shows that the consumption of high-status cars is higher in more unequal counties. These results suggest that greater income heterogeneity might shape hou...
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作者：Govindarajan, Aravind; Sinha, Amitabh; Uichanco, Joline
作者单位：Amazon.com; University of Michigan System; University of Michigan
摘要：We study a multilocation newsvendor network when the only information available on the joint distribution of demands are the values of its mean vector and covariance matrix. We adopt a distributionally robust model to find inventory levels that minimize the worst-case expected cost among the distributions consistent with this information. This problem is NP-hard. We find a closed-form tight bound on the expected cost when there are only two locations. This bound is tight under a family of join...
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作者：Bellos, Ioannis; Kavadias, Stylianos
作者单位：George Mason University; University of Cambridge
摘要：Modern service design practices conceptualize services as multistep processes. At each step, customers derive an uncertain value, which depends on a functional benefit and a subjective experience. The latter may depend on experiences realized at previous steps. Service designs determine the provider effort at each step given that customers prefer less-variable experiences, and enable a holistic perspective of the overall experience. We quantify two factors that shape service designs: the type ...
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作者：Gupta, Vishal; Rusmevichientong, Paat
作者单位：University of Southern California
摘要：Optimization applications often depend on a huge number of uncertain parameters. Inmany contexts, however, the amount of relevant data per parameter is small, and hence, we may only have imprecise estimates. We term this setting-in which the number of uncertainties is large but all estimates have low precision-the small-data, large-scale regime. We formalize a model for this new regime, focusing on optimization problems with uncertain linear objectives. We show that common data-driven methods,...
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作者：Chen, Xi; van der Lans, Ralf; Trusov, Michael
作者单位：Erasmus University Rotterdam - Excl Erasmus MC; Erasmus University Rotterdam; Hong Kong University of Science & Technology; University System of Maryland; University of Maryland College Park
摘要：This paper presents a structural discrete choice model with social influence for large-scale social networks. The model is based on an incomplete information game and permits individual-specific parameters of consumers. It is challenging to apply this type of models to real-life scenarios for two reasons: (1) The computation of the Bayesian-Nash equilibrium is highly demanding; and (2) the identification of social influence requires the use of excluded variables that are oftentimes unavailable...
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作者：Schuhmacher, Frank; Kohrs, Hendrik; Auer, Benjamin R.
作者单位：Leipzig University; Brandenburg University of Technology Cottbus; Leibniz Association; Ifo Institut
摘要：We show that, in the presence of a risk-free asset, the return distribution of every portfolio is determined by its mean and variance if and only if asset returns follow a specific skew-elliptical distribution. Thus, contrary to common belief among academics and practitioners, skewed returns do not allow a rejection of mean-variance analysis. Our work differs from Chamberlain's [Chamberlain G (1983) A characterization of the distributions that imply mean-variance utility functions. J. Econom. ...
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作者：Gillingham, Kenneth T.; Bollinger, Bryan
作者单位：Yale University; National Bureau of Economic Research; New York University
摘要：Growing literature points to the effectiveness of leveraging social interactions and nudges to spur adoption of prosocial behaviors. This study investigates a large-scale behavioral intervention designed to actively leverage social learning and peer interactions to encourage adoption of residential solar photovoltaic systems. Municipalities choose a solar installer offering group pricing and undertake an informational campaign driven by volunteer ambassadors. We find a causal treatment effect ...
