* During my seven years at Caltech, I had the pleasure of knowing Herb Ryser as a teacher and a colleague. It was difficult not to be inspired by Herb. He held such a deep understanding of combinatorics but was still honestly fascinated by the subject. Through his research, his books, and his students he added immeasurably to the wealth of combinatorial mathematics. + Work partially supported b...

In this paper, a refined sequential aggregate signature scheme from RSA that works for any modulus is presented, then a compact stimulation mechanism without a central, trusted authority for routing discovery in civilian ad hoc networks is proposed as an immediate application of this cryptographic primitive. Our protocol forces selfish nodes to cooperate and report actions honestly, thus enable...

Businesses want their customers to self-report information honestly. One increasingly popular way stimulate desired behavior is by using nudge interventions. But can be nudged more honestly? This currently a debate in the literature, where empirical results are inconclusive. Building on related literature nudges, we add this with controlled field experiment (N = 5704). We used data from actual ...

We develop a model of tax evasion based on the Ising model. We augment the model using an appropriate enforcement mechanism that may allow policy makers to curb tax evasion. With a certain probability tax evaders are subject to an audit. If they get caught they behave honestly for a certain number of periods. Simulating the model for a range of parameter combinations, we show that tax evasion m...

A set B is called EXPSPACE-avoiding, if every subset of B in EXPSPACE is sparse. For example, sets of high information density (called HIGH sets in 5]) are shown to be EXPSPACE-avoiding. Investigating the complexity of sets A in EXPSPACE that honestly reduce to EXPSPACE-avoiding sets, we show that if the reducibility used has a property, called range-constructibility, then A must also reduce to...

Several of the papers in this special issue are in one way or another linked to Cooke’s ‘‘classical’’ method for combining expert probability distributions. This comment focuses on characteristics of that method. In particular, I consider two questions: does the weighting scheme give the experts a positive incentive to report their beliefs honestly for each variable? How does Cooke’s method per...

Dr X: It is mainly private clinics, but [also] individual people; hospitals much less. They’re doing [semen collection] on their own premises also. We have a small bank. We get almost 10 donors every day. We try to do our work as thoroughly and as honestly as possible; because there is a lot of ghapla [corruption] in this field in sperm banks. You may not know about it. As for private practitio...

Intentional response distortion or faking among job applicants completing measures such as personality and integrity tests is a concern in personnel selection. The present study aimed to investigate whether eye-tracking technology can improve our understanding of the response process when faking. In an experimental within-participants design, a Big Five personality test and an integrity measure...

Humans sometimes forage or distribute the products of foraging in ways that do not maximize individual energetic return rates. As an alternative to hypotheses that rely on reciprocal altruism to counter the costs of inefficiency, we suggest that the cost itself could be recouped through signal benefit. Costly signaling theory predicts that signals can provide fitness benefits when costs are hon...