Wednesday 23 November
- Speaker: Professor Paola Manzini (University of Bristol)
- Title: “A model of approval” joint with Marco Mariotti and Levent Ülkü
- Time: 14:45pm - 16:00pm BST (GMT)
- Location: 3 East 2.2
Online technologies enable a host of observable acts, such as 'wishlisting', that do not quite amount to choice meant as a final selection. Rather, they express interest and a positive attitude towards an item. We gather this type of behaviour under the term approval. With items presented as a list, we propose a general model of approval. We completely characterise the model in terms of simple properties of observed approval data. We show that the psychological primitives leading to approval are substantially identifiable from observed behaviour. Finally, we introduce and study the problem of 'list design'. This captures situations where an interested party can manipulate the approver’s behaviour by choosing the list with the aim of maximising an objective.