Neil Stewart
Biographic Data
| ID | 916239 |
|---|---|
| NAME | Neil Stewart |
| GIVEN NAMES | Neil |
| FAMILY NAME | Stewart |
| SIGNATURE | STEWART N |
| AFFILIATIONS | University of Warwick |
| ORCID | 0000-0002-2202-018X |
| VERIFIED | Yes |
| TOTAL WORKS | 18 |
| TOTAL CITATIONS | 34 |
| AUTHOR COUNT | 18 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1951 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 4 |
Optimal allocation of time in risky choices under opportunity costs
In economic decision-making there is a trade-off between deliberation time to make a good decision and opportunity costs of other rewarding activities. Recent theories describe how the optimal strategy of evidence accumulation for this problem depends on the environment. If the utility difference between two options is known a priori, but not the identity of the better option, decision-makers should accumulate evidence according to a drift diffus…
A meta-analysis of loss aversion in risky contexts
Loss aversion is widely regarded as the most robust and ubiquitous finding in behavioural economics. According to the loss aversion hypothesis, the subjective value of losses exceeds the subjective value of equivalent gains. One common assumption in the literature is that this asymmetry represents a fundamental and stable feature of people’s preferences. In cumulative prospect theory, loss aversion is captured by the lambda (λ) parameter, which c…
Do Nudges Reduce Borrowing and Consumer Confusion in the Credit Card Market
We study nudges that turn out to have precise null effects in reducing long‐run credit card debt. We test nudges across two field experiments covering 183,441 UK cardholders. Our first experiment studies nudges added to monthly credit card statements. Our second experiment studies letters and email nudges (separate from monthly statements) sent to cardholders who signed up to automatically pay the minimum required payment. In a follow‐up survey t…
Hlaváček a Kafka
The following text represents a chapter taken from my 2019 monograph on the journal Moderní revue (Modern Review), which was published in Prague between 1894 and 1925 and significantly contributed to the modernisation of Czech culture at that time. Moderní revue strove to overcome the narrow nationalist focus and ethnic segregation that had characterised so much 19th-century literature and art in Bohemia. The editors specifically sought to acquai…
The association between gambling and financial, social and health outcomes in big financial data
Officer bias, over-patrolling and ethnic disparities in stop and search
The role of alcohol in the link between national football (soccer) tournaments and domestic abuse - Evidence from England
Domestic abuse is increasingly recognised as a serious public health concern worldwide. Previous research has suggested a link between national football (soccer) tournaments and domestic abuse. While hypothesized to be a significant factor, the role alcohol plays in this relationship has not yet been explored quantitatively. In this study, using 10 years' worth of crime data (from 2010 to 2019) from the second largest police force in England (Wes…
The case of muddled units in temporal discounting
While parameters are crucial components of cognitive models, relatively little importance has been given to their units. We show that this has lead to some parameters to be contaminated, introducing an artifactual correlation between them. We also show that this has led to the illegal comparison of parameters with different units of measurement - this may invalidate parameter comparisons across participants, conditions, groups, or studies. We dem…
Causal peer effects in police misconduct
The average laboratory samples a population of 7,300 Amazon Mechanical Turk workers
Using capture-recapture analysis we estimate the effective size of the active Amazon Mechanical Turk (MTurk) population that a typical laboratory can access to be about 7,300 workers. We also estimate that the time taken for half of the workers to leave the MTurk pool and be replaced is about 7 months. Each laboratory has its own population pool which overlaps, often extensively, with the hundreds of other laboratories using MTurk. Our estimate i…
Eye Movements in Risky Choice
We asked participants to make simple risky choices while we recorded their eye movements. We built a complete statistical model of the eye movements and found very little systematic variation in eye movements over the time course of a choice or across the different choices. The only exceptions were finding more (of the same) eye movements when choice options were similar, and an emerging gaze bias in which people looked more at the gamble they ul…
Eye Movements in Strategic Choice
In risky and other multiattribute choices, the process of choosing is well described by random walk or drift diffusion models in which evidence is accumulated over time to threshold. In strategic choices, level- k and cognitive hierarchy models have been offered as accounts of the choice process, in which people simulate the choice processes of their opponents or partners. We recorded the eye movements in 2 × 2 symmetric games including dominance…
Associations between a one-shot delay discounting measure and age, income, education and real-world impulsive behavior
A social-cognitive model of trait and state levels of gratitude
Three studies tested a new model of gratitude, which specified the generative mechanisms linking individual differences (trait gratitude) and objective situations with the amount of gratitude people experience after receiving aid (state gratitude). In Study 1, all participants (N = 253) read identical vignettes describing a situation in which they received help. People higher in trait gratitude made more positive beneficial appraisals (seeing the…
Seeing is not enough
We show that preferences depend on the attributes that can be directly manipulated when people need to integrate multiple sources of information because direct manipulation causes focusing bias. This effect appears even when all relevant information is simultaneously and explicitly presented at the time the decisions are made. Participants decided how much to save, what investment risk to take and observed the future financial consequences in ter…
Decision by sampling
Financial prospect relativity
We report three studies in which methodologies from psychophysics are adapted to investigate context effects on individual financial decision‐making under risk. The aim was to determine how the range and the rank of the options offered as saving amounts and levels of investment risk influence people's decisions about these variables. In the range manipulation, participants were presented with either a full range of choice options or a limited sub…
Divide and Rule
Eye Movements in Risky Choice
We asked participants to make simple risky choices while we recorded their eye movements. We built a complete statistical model of the eye movements and found very little systematic variation in eye movements over the time course of a choice or across the different choices. The only exceptions were finding more (of the same) eye movements when choice options were similar, and an emerging gaze bias in which people looked more at the gamble they ul…
Causal peer effects in police misconduct
Officer bias, over-patrolling and ethnic disparities in stop and search
Eye Movements in Strategic Choice
In risky and other multiattribute choices, the process of choosing is well described by random walk or drift diffusion models in which evidence is accumulated over time to threshold. In strategic choices, level- k and cognitive hierarchy models have been offered as accounts of the choice process, in which people simulate the choice processes of their opponents or partners. We recorded the eye movements in 2 × 2 symmetric games including dominance…
The association between gambling and financial, social and health outcomes in big financial data
Financial prospect relativity
We report three studies in which methodologies from psychophysics are adapted to investigate context effects on individual financial decision‐making under risk. The aim was to determine how the range and the rank of the options offered as saving amounts and levels of investment risk influence people's decisions about these variables. In the range manipulation, participants were presented with either a full range of choice options or a limited sub…
A meta-analysis of loss aversion in risky contexts
Loss aversion is widely regarded as the most robust and ubiquitous finding in behavioural economics. According to the loss aversion hypothesis, the subjective value of losses exceeds the subjective value of equivalent gains. One common assumption in the literature is that this asymmetry represents a fundamental and stable feature of people’s preferences. In cumulative prospect theory, loss aversion is captured by the lambda (λ) parameter, which c…
The role of alcohol in the link between national football (soccer) tournaments and domestic abuse - Evidence from England
Domestic abuse is increasingly recognised as a serious public health concern worldwide. Previous research has suggested a link between national football (soccer) tournaments and domestic abuse. While hypothesized to be a significant factor, the role alcohol plays in this relationship has not yet been explored quantitatively. In this study, using 10 years' worth of crime data (from 2010 to 2019) from the second largest police force in England (Wes…
Divide and Rule
Decision by sampling
Financial prospect relativity
We report three studies in which methodologies from psychophysics are adapted to investigate context effects on individual financial decision‐making under risk. The aim was to determine how the range and the rank of the options offered as saving amounts and levels of investment risk influence people's decisions about these variables. In the range manipulation, participants were presented with either a full range of choice options or a limited sub…
A social-cognitive model of trait and state levels of gratitude
Three studies tested a new model of gratitude, which specified the generative mechanisms linking individual differences (trait gratitude) and objective situations with the amount of gratitude people experience after receiving aid (state gratitude). In Study 1, all participants (N = 253) read identical vignettes describing a situation in which they received help. People higher in trait gratitude made more positive beneficial appraisals (seeing the…
Seeing is not enough
We show that preferences depend on the attributes that can be directly manipulated when people need to integrate multiple sources of information because direct manipulation causes focusing bias. This effect appears even when all relevant information is simultaneously and explicitly presented at the time the decisions are made. Participants decided how much to save, what investment risk to take and observed the future financial consequences in ter…
Associations between a one-shot delay discounting measure and age, income, education and real-world impulsive behavior
The average laboratory samples a population of 7,300 Amazon Mechanical Turk workers
Using capture-recapture analysis we estimate the effective size of the active Amazon Mechanical Turk (MTurk) population that a typical laboratory can access to be about 7,300 workers. We also estimate that the time taken for half of the workers to leave the MTurk pool and be replaced is about 7 months. Each laboratory has its own population pool which overlaps, often extensively, with the hundreds of other laboratories using MTurk. Our estimate i…
Eye Movements in Risky Choice
We asked participants to make simple risky choices while we recorded their eye movements. We built a complete statistical model of the eye movements and found very little systematic variation in eye movements over the time course of a choice or across the different choices. The only exceptions were finding more (of the same) eye movements when choice options were similar, and an emerging gaze bias in which people looked more at the gamble they ul…
Eye Movements in Strategic Choice
In risky and other multiattribute choices, the process of choosing is well described by random walk or drift diffusion models in which evidence is accumulated over time to threshold. In strategic choices, level- k and cognitive hierarchy models have been offered as accounts of the choice process, in which people simulate the choice processes of their opponents or partners. We recorded the eye movements in 2 × 2 symmetric games including dominance…
Causal peer effects in police misconduct
The case of muddled units in temporal discounting
While parameters are crucial components of cognitive models, relatively little importance has been given to their units. We show that this has lead to some parameters to be contaminated, introducing an artifactual correlation between them. We also show that this has led to the illegal comparison of parameters with different units of measurement - this may invalidate parameter comparisons across participants, conditions, groups, or studies. We dem…
Hlaváček a Kafka
The following text represents a chapter taken from my 2019 monograph on the journal Moderní revue (Modern Review), which was published in Prague between 1894 and 1925 and significantly contributed to the modernisation of Czech culture at that time. Moderní revue strove to overcome the narrow nationalist focus and ethnic segregation that had characterised so much 19th-century literature and art in Bohemia. The editors specifically sought to acquai…
The association between gambling and financial, social and health outcomes in big financial data
Officer bias, over-patrolling and ethnic disparities in stop and search
The role of alcohol in the link between national football (soccer) tournaments and domestic abuse - Evidence from England
Domestic abuse is increasingly recognised as a serious public health concern worldwide. Previous research has suggested a link between national football (soccer) tournaments and domestic abuse. While hypothesized to be a significant factor, the role alcohol plays in this relationship has not yet been explored quantitatively. In this study, using 10 years' worth of crime data (from 2010 to 2019) from the second largest police force in England (Wes…
Do Nudges Reduce Borrowing and Consumer Confusion in the Credit Card Market
We study nudges that turn out to have precise null effects in reducing long‐run credit card debt. We test nudges across two field experiments covering 183,441 UK cardholders. Our first experiment studies nudges added to monthly credit card statements. Our second experiment studies letters and email nudges (separate from monthly statements) sent to cardholders who signed up to automatically pay the minimum required payment. In a follow‐up survey t…
A meta-analysis of loss aversion in risky contexts
Loss aversion is widely regarded as the most robust and ubiquitous finding in behavioural economics. According to the loss aversion hypothesis, the subjective value of losses exceeds the subjective value of equivalent gains. One common assumption in the literature is that this asymmetry represents a fundamental and stable feature of people’s preferences. In cumulative prospect theory, loss aversion is captured by the lambda (λ) parameter, which c…
Optimal allocation of time in risky choices under opportunity costs
In economic decision-making there is a trade-off between deliberation time to make a good decision and opportunity costs of other rewarding activities. Recent theories describe how the optimal strategy of evidence accumulation for this problem depends on the environment. If the utility difference between two options is known a priori, but not the identity of the better option, decision-makers should accumulate evidence according to a drift diffus…
Psychology (12 works) · Economics (10 works) · Decision-Making and Behavioral Economics (9 works) · Mathematics (7 works) · Microeconomics (6 works) · Political science (6 works) · Computer Science (5 works) · Econometrics (5 works) · Social Psychology (5 works) · Demography (4 works)