Search Results for author: Georgios Gerasimou

Found 6 papers, 0 papers with code

Learning to Maximize (Expected) Utility

no code implementations26 Feb 2024 Thomas Dohmen, Georgios Gerasimou

We study if participants in a choice experiment learn to behave in ways that are closer to the predictions of ordinal and expected utility theory as they make decisions from the same menus repeatedly and without receiving feedback of any kind.

Non-diversified portfolios with subjective expected utility

no code implementations17 Apr 2023 Christopher P. Chambers, Georgios Gerasimou

Although diversification is the typical strategy followed by risk-averse investors, non-diversified positions that allocate all resources to a single asset, state of the world or revenue stream are common too.

Towards Eliciting Weak or Incomplete Preferences in the Lab: A Model-Rich Approach

no code implementations29 Nov 2021 Georgios Gerasimou

Second, it analyses the collected data with a new non-parametric combinatorial-optimization method that allows to compare the goodness-of-fit of utility maximization to that of models of undominated or dominant choice with incomplete preferences, in each case with or without indifferences.

Combinatorial Optimization Descriptive +1

Ordinal Intensity-Efficient Allocations

no code implementations9 Nov 2020 Georgios Gerasimou

We study the assignment problem in situations where, in addition to having ordinal preferences, agents also have *ordinal intensities*: they can make simple and internally consistent comparisons such as "I prefer $a$ to $b$ more than I prefer $c$ to $d$" without necessarily being able to quantify them.

The Decision-Conflict Logit

no code implementations10 Aug 2020 Georgios Gerasimou

We introduce the *decision-conflict logit*, a simple and disciplined extension of the logit with an outside option that assigns a menu-dependent utility to that option.

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