Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"ambiguity aversion"”.
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Ambiguity Aversion in Commodity Markets
… model misspecification, adopt the framework of ambiguity aversion to protect themselves, and utilize a robust indifference pricing framework for valuation and hedging. Most exotic financial options written on commodities are valued by discretizing continuous-time and state models. Thus, in the …
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Ambiguity Aversion: Adoption, Uptake, and Trends
<p>What is ambiguity aversion and what is its role as a determinant of technology adoption? This study develops and implements a novel ambiguity preference instrument in the context of an ongoing RCT pilot program in southwest Uganda promoting adoption of an improved variety of sweet potato. No …
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Ambiguity, ambiguity aversion and the coverage of uncertain risks : the case of the insurer
Ambiguity aversion is defined as an aversion to any mean-preserving spread in the probability space. Using the Smooth Ambiguity Model proposed by Klibanoff, Marinacci and Mukerji (2005), we show that ambiguity aversion results in a reduction in the proportion of insurance coverage offered by an …
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Optimal long-term financing under ambiguous volatility
… show how it affects the optimal contract. Ambiguity aversion generates endogenous belief heterogeneity between the principal and the agent. Under the optimal contract, the agent always trusts the benchmark probability model, while the principal forms expectations as if volatility is …
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Drivers and Barriers to Producer Adoption of Climate Resilient Pea Varieties in the Western Canadian Prairies
… allowed us to explore how risk, loss, and ambiguity aversion affected demand for varietal attributes—such as climate resilience (root rot resistance and drought tolerance), royalty models (e.g., Variety Use Agreements), and new technologies (e.g., gene editing). Analyzed through a mixed …
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Three Essays on Adoption and Impact of Agricultural Technology in Bangladesh
… Bangladeshi farmers' attitudes toward risk and ambiguity using experimental data. In different sessions, the experiment allows farmers to make decisions alone and communicate with peers in groups of 3 and 6 to see how social exchanges among peers affect attitudes toward uncertainty. Combining …
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Essays in Financial Economics
… novel preference formulations which capture aversion to ambiguity about unknown and potentially time-varying volatility. These preferences are compared with Gilboa and Schmeidler's maxmin expected utility as well as variational formulations of ambiguity aversion. The impact of ambiguity …
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Three essays in behavioural finance: An examination into non- Bayesian Investment behaviour
… from the Bayesian model that arise due to i) ambiguity aversion, ii) investor sentiment and iii) decision heuristics. Bayesian Updating assumes that investors are able to always estimate a single generating process for expected returns. However, in reality investors analyze noisy information …
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RISK- AND AMBIGUITY-AVERSE OPTIMIZATION MADE MORE TRACTABLE AND LESS CONSERVATIVE
… made when the decision maker exhibits risk aversion, ambiguity aversion and regret aversion. Theoretically, we develop a new regret-based robust satisficing framework and devise an upper confidence bound algorithm to tackle two-stage optimization and online learning, respectively. The thesis …
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Essays on the Impacts of Environment on Uncertainty Attitudes and Consumption Choices
… disassociation between decisions in risk and in ambiguity. The next essay shows that people’s attitudes are sensitive to the inflow of information within their nation (environment). The announcement (a hike of interest rates) although positive and well anticipated, resulted in different reactions …
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ESSAYS IN EMPIRICAL CORPORATE FINANCE
… this decision, we build a unique model of ambiguity aversion wherein the family’s information advantage in their firm allows them to more accurately estimate value-at-risk in tail events relative to the diversified portfolio. Using an index of macroeconomic uncertainty, we find a strong, …
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Decision-making Across Development: The Impact of Ambiguity and Social Context
… between public health and laboratory findings: ambiguity and social context. Everyday decisions tend to involve ambiguous decisions (choices with unknown probabilities), while previous laboratory studies have largely focused on risky decisions (choices with known probabilities). Consequently, …