Essays on the Effects of Asymmetric Information

Essays on the Effects of Asymmetric Information
Author: Mario Ramirez Basora
Publisher:
Total Pages: 128
Release: 2012
Genre:
ISBN:

It can be easily argued that most, if not all, real economic settings are asymmetric in nature. Particularly, it is often the case that one or several agents possess more or better information than the rest when agreeing upon an economic transaction. Although the information economics revolution of the 1970s laid out the majority of the theoretical foundations, the effects of asymmetric information are subtle and have not been studied in some very interesting contexts, which motivate this thesis. In the first essay, which is based on joint work with Antonio Bento and Benjamin Ho, we study the problem of an uninformed regulator who wishes to use a voluntary price instrument under varying degrees of uncertainty, specifically in the context of a carbon offset market. In this scenario, a regulator offers private land owners a contract that compensates them for producing carbon offsets while minimizing adverse selection and welfare losses. The model shows that monitoring should decrease as the uncertainty of offset quality decreases, but should increase as uncertainty over agricultural productivity increases. Also, in response to those who argue that the problem of additionality is so large that carbon offsets should not be allowed in carbon regulation, the model quantifies the amount of additionality and finds that even in the case of a regulator with no information, welfare is improved by allowing offset contracts. Finally, the model offers guidance for calculating the optimal offset price as a function of the regulator's information. The second essay consists of a cardinal tournament used by a representative firm to choose its next CEO. Candidates are managers of different types: they are heterogeneous over levels of ability and risk aversion. The managers have private information about their ability. In this context, a two-dimensional solution set of levels of ability and risk aversion corresponding to each possible mean of cash flow realization is identified. Using two different specifications (CARA preferences with normally distributed cash flows, and CRRA preferences with log-normally distributed cash flows), the trade-off between managerial ability and risk aversion is found to be characterized by a concave function. Furthermore, for better levels of technology, the relative importance of risk aversion with respect to ability increases, while for worse levels of technology, the reverse holds. Finally, in the third essay, using a model based on the optimal consumption and investment models from the operations research literature, I study how the CEO characteristics studied in Chapter 2 impact dividend policy and the longrun evolution of the firm. Specifically, when assuming CRRA preferences and a concave trade-off between ability and risk aversion, I find that the optimal dividend policy of the CEO is non-monotonic with respect to risk aversion. In other words, CEOs with a combination of both high (or low) ability and risk aversion, will pay out lower dividend yields than CEOs with a more balanced combination of ability and risk aversion. Furthermore, firm survival is a function of the dividend yield and is also non-monotonic: while the probability of firm survival converges to either zero or one as risk aversion (and, by extension, ability) converges to either zero or infinity, there exists a range for which lower investment counteracts a potentially higher dividend yield, and the resulting change in the probability of survival is ambiguous.

Essays on the Economics of Information

Essays on the Economics of Information
Author: Matthew Robertson
Publisher:
Total Pages: 0
Release: 2018
Genre:
ISBN:

In three distinct, yet interrelated, essays I examine the effects of asymmetric information and imperfect information on economic decision makers' incentives and behaviour. To do so I employ, and modify, the methodology of Bayesian games.In chapter one, I analyse an unconventional contest inspired by the real world.In this contest, players are ranked by a scoring rule based on both their realised performance and how close this performance is to a target set before the contest,which is private information. I elucidate and analyse the incentive properties of these rules then characterise the equilibrium behaviour of the players.In chapter two, I integrate aspects from adverse selection and moral hazard models to provide a unied theory of securitisation under asymmetric information.I show that introducing skin in the game increases signalling costs for originators who performed sufficient due-diligence yet still improves incentives by making high effort relatively more likely. I relax the conventional assumption of risk neutrality and show that risk-sharing concerns are sufficient for the aforementioned qualitative properties of equilibrium to hold. Finally, I demonstrate that, depending on the severity of the originator's preference for liquidity or need to share risk, each setting may be more conducive for signalling.In chapter three, I propose a simple and intuitive way to transform canonical signalling games with exogenous types into games in which the informed agent endogenously generates her private information through an unobservable costly effort decision. I provide portable results on the differentiability of action functions and existence of equilibrium. I then apply these results to classic models of security design and the job market to demonstrate the practical usefulness of endogenous effort. In particular, my approach in these applications lends theoretical support to stylised facts that cannot be derived from the standard signalling framework.

Essays on the Economics of Selected Multi-Period Insurance Decisions with Private Information

Essays on the Economics of Selected Multi-Period Insurance Decisions with Private Information
Author: Petra Steinorth
Publisher: VVW GmbH
Total Pages: 146
Release: 2011
Genre: Business & Economics
ISBN: 3862980790

"Petra Steinorth präsentiert in ihrer in englischer Sprache vorgelegten kumulativen Dissertationsschrift drei theoretische Modelle, die Versicherungsentscheidungen über mehrere Perioden und bei privater Information seitens der Versicherungsnehmer ökonomisch untersuchen. Die Dissertation leistet einen wichtigen Beitrag zur theoretischen Forschung im Bereich Versicherungsökonomie, da insbesondere zu mehrperiodigen Fragestellungen noch großer Forschungsbedarf besteht: Der Beitrag ""Impact of Health Savings Accounts on Precautionary Savings, Demand for Health Insurance and Prevention Effort"" untersucht den Einfluss von steuerlich begünstigten Gesundheitssparkonten auf das Sparverhalten, die Nachfrage nach Krankenversicherung und Prävention. Im zweiten Beitrag ""Yes, No, Perhaps - Explaining the Demand for Risk Classification Insurance with Imperfect Private Information"" wird untersucht, welche Granularität der Risikoklassifizierung optimal ist, wenn die Versicherungsnehmer unvollständige private Information über ihren zukünftigen Risikotyp haben. Der dritte Beitrag ""The Demand for Enhanced Annuities"" analysiert die Reaktion des Marktes auf die Einführung von sogenannten Enhanced Annuities. Dabei handelt es sich um Rentenversicherungsprodukte, die die individuelle Lebenserwartung bei der Tarifierung berücksichtigen. Die wissenschaftliche Arbeit ist auch für Mitarbeiter in Versicherungsunternehmen von Interesse, da sie wichtige Bereiche des Produktmanagements in der Lebens- und Krankenversicherung behandelt. Petra Steinorth ́s dissertation consists of three theoretical models, which all examine the economics of selected multi-period insurance decisions with private information on the part of the insured. The thesis makes an important contribution to insurance economics literature as multi-period problems have not yet been widely studied. The article ""Impact of Health Savings Accounts on Precautionary Savings, Demand for Health Insurance and Prevention Effort"" investigates how tax incentives like health savings accounts influence savings for medical costs, the demand for health insurance and ex ante moral hazard. The second article ""Yes, no, perhaps - Explaining the Demand for Risk Classification Insurance"" examines the optimal risk classification in case the insured have incomplete private information regarding their future risk type. The third article ""The Demand for Enhanced Annuities"" analyzes the market reaction to the introduction of so-called enhanced annuities, which are annuities that take individual factors influencing life expectancy into account for pricing. The scientific dissertation is also of interest to insurance practitioners as it examines important issues in the field of health and life insurance product management."