{"title":"Gerd Gigerenzer and Vernon Smith: Ecological Rationality of Heuristics in Psychology and Economics","authors":"S. Mousavi","doi":"10.2139/ssrn.3457191","DOIUrl":"https://doi.org/10.2139/ssrn.3457191","url":null,"abstract":"Behavioral economists use psychological findings to evaluate and revise economic decision theory, to build models that correspond directly to observations of behavior, and to develop descriptive accounts for deviations from principles of neoclassical rationality. One of the main sources of psychological insight is the heuristics and biases research program. This chapter introduces another source of psychological insights, the ecological rationality of fast-and-frugal heuristics, and is organized as follows. First, the chapter juxtaposes psychological (á la Gigerenzer) with economic (á la Smith) views of ecological rationality, thereby connecting fast-and-frugal heuristics to a major source of inspiration and motivation for behavioral economists, namely experimental economics. Then, it briefly reviews a collection of articles illustrating how the successful use of heuristics in business decision making can be understood by using ecological rationality as an investigative framework. Finally, it locates the field of inquiry for behavioral economics on a continuum of scientific problem solving in the interval that Weaver (1948) called organized complexity. Simple heuristics deserve special attention from behavioral economists because they work best in this very interval where exact methods of optimization are structurally unfitting. Put together, these connections, examples, and arguments suggest that mainstream behavioral economics can gain from integrating this less-explored psychological framework. This integration starts by attempting to formulate effective decision rules as fast-and-frugal heuristics and exploring their ecological rationality.","PeriodicalId":143310,"journal":{"name":"DecisionSciRN: Other Economic Decision Theory (Sub-Topic)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128532817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Presentation Slides for 'Are Investors Really Reluctant to Realize Their Losses? Trading Responses to Past Returns and the Disposition Effect'","authors":"Itzhak Ben-David, D. Hirshleifer","doi":"10.2139/ssrn.3217315","DOIUrl":"https://doi.org/10.2139/ssrn.3217315","url":null,"abstract":"We examine how investor preferences and beliefs affect trading in relation to past gains and losses. The probability of selling as a function of profit is V-shaped; at short holding periods, investors are more likely to sell big losers than small ones. There is little evidence of an upward jump in selling at zero profits. These findings provide no clear indication that realization preference explains trading. Furthermore, the disposition effect is not driven by a simple direct preference for selling a stock by virtue of having a gain versus loss. Trading based on belief revisions can potentially explain these findings. \u0000Paper available at: https://ssrn.com/abstract=1876594.","PeriodicalId":143310,"journal":{"name":"DecisionSciRN: Other Economic Decision Theory (Sub-Topic)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114754619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Differential Information Economies and Incomplete Markets","authors":"K. Pronin","doi":"10.2139/ssrn.3357891","DOIUrl":"https://doi.org/10.2139/ssrn.3357891","url":null,"abstract":"In a pure exchange economy with differential information, there may be ex-post Pareto-dominant core allocations which are not attainable as rational expectations equilibria because of information verifiability issues. On the other hand, many of the core allocations in the differential information economy do not seem realistic, given incentive constraints. This fundamental tension between missed trading opportunities and moral hazard will be explored using concepts from cooperative game theory and financial economics. <br><br>","PeriodicalId":143310,"journal":{"name":"DecisionSciRN: Other Economic Decision Theory (Sub-Topic)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131277723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michael Braun, P. Fader, Eric T. Bradlow, H. Kunreuther
{"title":"Modeling the 'Pseudodeductible' in Insurance Claims Decisions","authors":"Michael Braun, P. Fader, Eric T. Bradlow, H. Kunreuther","doi":"10.1287/mnsc.1060.0517","DOIUrl":"https://doi.org/10.1287/mnsc.1060.0517","url":null,"abstract":"In many different managerial contexts, consumers “leave money on the table” by, for example, their failure to claim rebates, use available coupons, and so on. This project focuses on a related problem faced by homeowners who may be reluctant to file insurance claims despite the fact their losses are covered. We model this consumer decision by introducing the concept of the “pseudodeductible,” a latent threshold above the policy deductible that governs the homeowner's claim behavior. In addition, we show how the observed number of claims can be modeled as the output of three stochastic processes that are separately, and in conjunction, managerially relevant: the rate at which losses occur, the size of each loss, and the choice of the individual to file or not file a claim. By allowing for the possibility of pseudodeductibles, one can sort out (and make accurate inferences about) these three processes. We test this model using a proprietary data set provided by State Farm, the largest underwriter of personal lines insurance in the United States. Using mixtures of Dirichlet processes to capture heterogeneity and the interplay among the three processes, we uncover several relevant “stories” that underlie the frequency and severity of claims. For instance, some customers have a small number of losses, but all are filed as claims, whereas others may experience many more losses, but are more selective about which claims they file. These stories explain several observed phenomena regarding the claims decisions that insurance customers make, and have broad implications for customer lifetime value and market segmentation.","PeriodicalId":143310,"journal":{"name":"DecisionSciRN: Other Economic Decision Theory (Sub-Topic)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114675649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Risk Reduction in the New Financial Architecture: Realities, Fallacies, and Proposals","authors":"Martin Mayer","doi":"10.2139/ssrn.165550","DOIUrl":"https://doi.org/10.2139/ssrn.165550","url":null,"abstract":"Five times in a decade not yet completed, financial markets have floated to the edge of a whirlpool; in October 1998 they were about to drown when Alan Greenspan threw them a piece of string that, surprisingly, turned out to be a lifeline. The causes for this financial instability lie deep—in the economic theory that urges easy and efficient substitution of one piece of paper for another, always and everywhere; in the technology-driven tight articulation of receipts and payments that Hyman Minsky warned against a generation ago; and in the growth of leverage that diminishes the creditworthiness of major institutions when an interruption in their receipts requires them to seek funds. Meanwhile, as decision-making in finance moves from banks to markets, and the creators of derivative instruments find ways to present uncertainties as risks that can be modeled, time horizons fall and spurious interrelations promote \"dynamic hedging\" that communicates financial disturbance anywhere to price volatility everywhere. Prevention should be sought in rules to control the creation of leverage in the repo and derivatives markets and in limits on banks' freedom to back away from borrowers' cross-border liabilities in currencies other than their own. Crisis management when prevention fails will require \"standstill\" agreements to encourage the continuation of something like normal economic life while the losses from merely financial failure are sorted out.","PeriodicalId":143310,"journal":{"name":"DecisionSciRN: Other Economic Decision Theory (Sub-Topic)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121831280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}