Search results for "Discounting"
showing 10 items of 18 documents
The impact of visual working memory capacity on the filtering efficiency of emotional face distractors.
2018
Emotional faces can serve as distractors for visual working memory (VWM) tasks. An event-related potential called contralateral delay activity (CDA) can measure the filtering efficiency of face distractors. Previous studies have investigated the influence of VWM capacity on filtering efficiency of simple neutral distractors but not of face distractors. We measured the CDA indicative of emotional face filtering during a VWM task related to facial identity. VWM capacity was measured in a separate colour change detection task, and participants were divided to high- and low-capacity groups. The high-capacity group was able to filter out distractors similarly irrespective of its facial emotion. …
Cost-efficient strategies to preserve dead wood-dependent species in a managed forest landscape
2016
Negative consequences of intensive forest management on biodiversity are often mitigated by setting aside old forest, but alternative strategies have been suggested. We have compared using simulations the consequences of two of these alternatives setting aside young forests or extending rotation periods - to that of current practice in managed boreal forest In all scenarios we applied a constant conservation budget and predicted forest development and harvesting over 200 years. As a proxy for biodiversity conservation, we projected the extinction risk of a dead wood-dependent beetle, Diacanthous undulatus, in a 50 km(2) landscape in central Sweden, using a colonization-extinction model. Dur…
Qualitative variations in delay discounting: A brief review and future directions.
2022
The discounting paradigm has been challenged by an increasing number of studies presenting qualitative variations in the individual discount function. Particularly, the subjective value of a loss does not necessarily systematically decrease with delay to the outcome. Qualitative variation refers to variations in shape rather than steepness of the discount function, such as positive discounting, zero discounting, unsystematic discounting, and negative discounting. Data from three previous studies were analysed in terms of qualitative variations observed in delay discounting patterns. Attention was also given to methods used and to the relationship between the results from the various levels …
Sign effect in adolescents: Within‐subject comparison of delay discounting of hypothetical monetary gains and losses
2020
The purpose of this article is to contribute to the research on the sign effect, steeper discounting of gains compared to losses, by offering results from an experiment using a "double-delay" procedure on adolescents. Twenty-four 14-year-old schoolchildren completed a computer-based test consisting of choices of Smaller-Sooner (SS) and Larger-Later (LL) hypothetical monetary gains and losses. Within-subject comparison and analysis of the aggregated data were conducted. Current results were also examined in light of prior research with adult participants, and variations in behavioral patterns were identified. Although the sign effect appears to be more profound in adolescents compared to adu…
Recursive and bargaining values
2021
Abstract We introduce two families of values for TU-games: the recursive and bargaining values. Bargaining values are obtained as the equilibrium payoffs of the symmetric non-cooperative bargaining game proposed by Hart and Mas-Colell (1996). We show that bargaining values have a recursive structure in their definition, and we call this property recursiveness. All efficient, linear, and symmetric values that satisfy recursiveness are called recursive values. We generalize the notions of potential, and balanced contributions property, to characterize the family of recursive values. Finally, we show that if a time discount factor is considered in the bargaining model, every bargaining value h…
Optimal Population Growth as an Endogenous Discounting Problem: The Ramsey Case
2018
International audience; This paper revisits the optimal population size problem in a continuous time Ramsey setting with costly child rearing and both intergenerational and intertemporal altruism. The social welfare functions considered range from the Millian to the Benthamite. When population growth is endogenized, the associated optimal control problem involves an endogenous effective discount rate depending on past and current population growth rates, which makes preferences intertemporally dependent. We tackle this problem by using an appropriate maximum principle. Then we study the stationary solutions (balanced growth paths) and show the existence of two admissible solutions except in…
Economic income, historical costing income and conservatism
2020
The paper intends to contribute at the debate on the ‘Evolutionary Advantage of Cost Accounting and Conservatism’ ( Accounting, Economics and Law: A Convivium, 2019. 9. issue) , founded on Braun’s study (2016) about The Ecological Rationality of Historical Costs and Conservatism. Moving from the IASB Conceptual Framework (2013) it stresses the renewed interest in income concept. The economic financial crisis of 2008-9 stimulated discussions between the traditional ‘received view’ of ‘cost-revenue approach’ (historical cost accounting) and ‘balance-sheet approach’ (‘current values’ and ‘present values’, that is ‘economic values’). Revaluations of assets, liabilities and owners’ equities are …
An evolutionary model of voting
2001
Collective allocation of resources that takes place in po- litical markets is characterized by the complex exchange that emerges among the individuals involved. Traditional Public Choice models de- part from individual rational choice in a setup in which many of its strict requirements need not hold. This paper introduces a model of social interaction among agents in a simple political market which de- parts from bounded rationality and evolutionary dynamics as the key mechanisms that drive individual behavior. Learning plays a signicant role as it allows to establish an individual link between decisions and collective outcomes. The model is that of a representative democracy with two parti…
Health procrastination: The experience of 35-44 years old men
2018
The focal concept of this study is health procrastination. Delay in seeking help from medical practitioners is an increasing problem in Latvia, particularly with men between the ages of 35-44. Failures in primary and secondary prevention create a number of negative consequences, for instance, longer and more complex treatment; lower recovery prognosis as well as higher treatment costs. Nevertheless, the aforementioned group often avoids medical treatment. The aim of this study was to understand the experience of 35-44 years old men in terms of their health procrastination in qualitative terms. Semi-structured in-depth interviews with 48 men within the age range of 35-44 years were conducted…
Event-Related Potentials (ERP) Indices of Motivation during the Effort Expenditure for Reward Task
2020
Dynamic and temporal facets of the various constructs that comprise motivation remain to be explored. Here, we adapted the Effort Expenditure for Reward Task, a well-known laboratory task used to evaluate motivation, to study the event-related potentials associated with reward processing. The Stimulus Preceding Negativity (SPN) and the P300 were utilized as motivation indicators with high density electroencephalography. The SPN was found to be more negative for difficult choices compared to easy choices, suggesting a greater level of motivation, at a neurophysiological level. The insula, a structure previously associated with both effort discounting and prediction error, was concomitantly a…