Open Access
Incentives to give up resource extraction and avoid the tragedy of the commons
(2013) Benito Ostolaza, Juan Miguel; Osés Eraso, Nuria; Economía; Ekonomia
This paper develops a general model of common resource extraction where we introduce payments for environmental services to encourage resource users to give up extraction. The goal is to reach a balance between resource use and conservation. As the essence of conservation is dynamic, we use a dynamic model to study the implementation of the compensation scheme. A stable heterogeneous equilibrium can be reached where both extractors and non-extractors live together. We analyze how the success of the compensation depends on factors such as the elasticity of demand and the biological characteristics of the resource.
Open Access
Negative externalities in cropping decisions: private versus common land
(2013) Benito Ostolaza, Juan Miguel; Ezcurra Orayen, Roberto; Osés Eraso, Nuria; Economía; Ekonomia
This paper analyzes to what extent the definition of property rights affects cropping decisions when these decisions generate negative externalities. To that end, we implement an experimental study where agents make cropping decisions in two different treatments: private and common land. The results show that there are no statistically significant differences between the two treatments in the contribution to the negative externality, thus revealing that the definition of property rights does not affect cropping decision in this context. Furthermore, our findings indicate that the implication of the agents in activities generating negative externalities tends to increase over time, thus amplifying its adverse consequences.
Open Access
Participation in and provision of public goods: does granularity matter?
(Springer, 2020) Arlegi Pérez, Ricardo; Benito Ostolaza, Juan Miguel; Osés Eraso, Nuria; Ekonomia; Institute for Advanced Research in Business and Economics - INARBE; Economía
We use public goods games to experimentally investigate the effect of granularity (i.e., the degree of divisibility of the space of feasible contribution options) on participation (whether individuals contribute or not to the public good) and public goods provision (total contribution to the public good). Our results show that granularity has a significant effect on participation, mainly when coarser granularity eliminates the possibility of small contributions. However, this change in participation does not lead to a significant change in the total provision of the public good. These results are aligned with other experimental field results obtained in the context of donations and fundraising.
Open Access
Using visual stimuli to promote healthy snack choices among children
(Elsevier, 2021) Benito Ostolaza, Juan Miguel; Echavarri, Rebeca; García Prado, Ariadna; Osés Eraso, Nuria; Ekonomia; Institute for Advanced Research in Business and Economics - INARBE; Economía
Most interventions against obesity use information to persuade people to change their behavior, with moderate results. Because eating involves automatic routines, new approaches have emerged appealing to non-reflective cognitive processes. Through a randomized controlled trial, we evaluated the impact of visual stimuli (positive and negative) on children's snack-choices at school. Results showed that the negative stimulus had no effect, while the positive stimulus increased the probability among girls of choosing a healthy snack. We also found that children with excess weight had a larger baseline probability of choosing the healthy snack than those without. We conclude that happy emojis, used to nudge non-reflective processes, can steer children towards healthy choices.
Open Access
Do wealth levels affect the contribution to negative externalities?
(Elsevier, 2020) Benito Ostolaza, Juan Miguel; Ezcurra Orayen, Roberto; Osés Eraso, Nuria; Ekonomia; Institute for Advanced Research in Business and Economics - INARBE; Economía
This paper experimentally explores the link between poverty and decisions that lead environmental degradation. In the experiment, individuals with different wealth levels play a game that describes environmental degradation as a contribution to an activity that generates a negative externality. The experimental data show that wealth levels not related to the environment (exogenous poverty) play no significant role in environmental decisions. However, the variation in wealth as a consequence of the contribution to environmental degradation (endogenous poverty) affects the behavior of individuals, that enter a spiral of poverty and environmental degradation. These results suggest the existence of a poverty-environment trap.