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Class: Surveys and Experiments. Empirical Methods in Finance Victoria Ivashina March 7, 2013. 1. Surveys. C ore references:
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Class: Surveys and Experiments Empirical Methods in Finance Victoria Ivashina March 7, 2013
1. Surveys Core references: ** Graham, John R., and Campbell R. Harvey, 2001, “The Theory and Practice of Corporate Finance: Evidence from the Field,” Journal of Financial Economics, 60, 187-243. ** Campello, Murillo, John R. Graham, and Campbell R. Harvey, 2010, “The Real Effects of Financial Constraints: Evidence from a Financial Crisis,” Journal of Financial Economics 97, 470-487. Ben-David, Itzhak, John R. Graham, and Campbell R. Harvey, 2012, “Managerial Miscalibration,” 2012, forthcoming Quarterly Journal of Economics. ** Schreft, L. Stacey and Raymond E. Owens, 1991, “Survey evidence of Tighter Credit Conditions: What Does It Mean?” Federal Reserve Bank of Richmond. Lown, S. Cara, Donald P. Morgan, and SonaliRohatgi, 2000, “Listening to Loan Officers: The Impact of Commercial Credit Standards on Lending Output,” Economic Policy Review.
1. Surveys Methods • Why do surveys? • With a large-sample study we are often limited to proxies which are often imperfect • You get to ask qualitative and direct question • E.g., When evaluating new projects how often you use DCF methods? Is the demand for credit lower? Is the supply of credit lower? • But: • Selection (can assess it) • Surveys are reflection of beliefs, or, even worse, reflection of beliefs of “right” (vs. actions), and this can be very hard to assess • Design is important since questions can be misunderstood
1. Surveys Methods • Self-completion surveys • Cheap(er)! • No interviewer effects • Gives the respondent time to think and/or consult with others But • High non-response rate (8-9% is high) Selection bias • High incompletion rate • And you don’t get to clarify questions extra emphasis on the design of the survey • Interview-based surveys
1. Surveys Methods • Important: you most likely will not get a chance to go back and correct it. So get it right the first time around • Get feedback from “prominent academics” • Run a test • High incompletion rate, what to do? • Understand (design) incentives! • Motivation and credibility is important: E.g., introductory letters • E.g., Grahm and Harvey worked with Financial Executives Institute • Incentives for completion and quick return • A simple trade trick: Peer pressure… or maybe just resolution of uncertainty • Selective incompletion: You might want to alternate the order of questions
“Information Disclosure, Cognitive Biases and Payday Borrowing”(Marianne Bertrand and Adair Morse)
This is an important study: • It paper provides evidence on the economic importance of cognitive limitations in the context of payday-lending. • The cost of payday-lending is exorbitant – Why do people use it? (i) It is a rational decision (high opportunity cost); (ii) Customers are not properly informed /cognitive limitations. • Insight into effectiveness of information disclosure as a policy measure (Policy options: inform and/or limit options and/or educate).
Sample: • Follow up phone survey (October 2008) – 187 respondents • The treatment had an effect, yet the “patients” don’t thank you for it?
More information on the field experiment: • (relevant for the generalization of the results) • The carrot: • Why magazines? (Is payday-borrowing a necessity?) • Why these magazines? (What does the publisher get out of it?) • Why would anybody want these magazines? • Ironically, Saving Planner suggests getting rid of magazines.