Comanagement of small-scale fisheries and ecosystem services

Marine ecosystem services are in global decline, which requires new transformational changes in governance to cope with multiple anthropogenic stressors. We perform a systematic literature review of the biodiversity and ecosystem services outcomes of a governance transformation toward comanagement through the allocation of territorial user rights to artisanal fisher associations (TURFs) in Chile. We synthesize the implications of more than 25 years of establishing a TURF policy over ecosystem services. Results show TURFs sustain biodiversity and all typologies of ecosystem services when they are well enforced. Research on provisioning services is most prevalent, however cultural services have been gaining traction with studies assessing the role of leadership, sanctions, and social capital in determining TURF outcomes. The results suggest that TURFs can play an important role in creating social and ecological enabling conditions for local stewardship. While this is encouraging, there is a bias toward positive results and few studies address negative consequences of TURFs aimed at identifying constraints for further development. The review shows that there has been a continuous transition toward interdisciplinary social–ecological research. Research on TURFs faced with drivers of global change and uncertainty are urgently needed, in order to anticipate unintended outcomes and adapt accordingly

Taste Indicators and Heterogeneous Revealed Preferences for Congestion in Recreation Demand

Researchers using revealed preference data have mostly relied on the Mixed Logit (ML) framework to model unobserved heterogeneity. In this paper, we suggest an extension of this model where we integrate direct measures of taste and revealed preferences, under a unified econometric setting, to describe heterogeneous preferences for congestion in recreation demand. ML is a random parameter discrete choice model, which decomposes the coefficients of the regression equation into a mean effect shared by all individuals in the sample, and a deviation with respect to this mean, specific to each individual. Within this structure, heterogeneity is summarized using a parametric density function for the coefficients of the model. From this distribution one can identify the portion of people who like or dislike an attribute of the good. On the other hand, taste indicators, represented in a like-dislike scale, constitute complementary information about the distribution of tastes in the population. We combine both sources of information to characterize preferences in our model. The traditional ML suggests almost 60% of people in the sample like crowded places while our integrated model implies almost 100% of the people dislike congestion. These results show the bene…ts of using taste indicators to describe heterogeneous preferences for attributes describing alternatives of a choice set

Taste Indicators and Heterogeneous Revealed Preferences for Congestion in Recreation Demand

Researchers using revealed preference data have mostly relied on the Mixed Logit (ML) framework to model unobserved heterogeneity. In this paper, we suggest an extension of this model where we integrate direct measures of taste and revealed preferences, under a unified econometric setting, to describe heterogeneous preferences for congestion in recreation demand. ML is a random parameter discrete choice model, which decomposes the coefficients of the regression equation into a mean effect shared by all individuals in the sample, and a deviation with respect to this mean, specific to each individual. Within this structure, heterogeneity is summarized using a parametric density function for the coefficients of the model. From this distribution one can identify the portion of people who like or dislike an attribute of the good. On the other hand, taste indicators, represented in a like-dislike scale, constitute complementary information about the distribution of tastes in the population. We combine both sources of information to characterize preferences in our model. The traditional ML suggests almost 60% of people in the sample like crowded places while our integrated model implies almost 100% of the people dislike congestion. These results show the benefits of using taste indicators to describe heterogeneous preferences for attributes describing alternatives of a choice set

Functional Forms in Discrete/Continuous Choice Models With General Corner Solution

In this paper we present a new utility model that serves as the basis for modeling discrete/continuous consumer choices with a general corner solution. The new model involves a more flexible representation of preferences than what has been used in the previous literature and, unlike most of this literature, it is not additively separable. This functional form can handle richer substitution patterns such as complementarity as well as substitution among goods. We focus in part on the Quadratic Box-Cox utility function and examine its properties from both theoretical and empirical perspectives. We identify the significance of the various parameters of the utility function, and demonstrate an estimation strategy that can be applied to demand systems involving both a small and large number of commodities

Taste indicators and heterogeneous revealed preferences for congestion in recreation demand

mixed logic, framework recreation, demand research

Functional forms in discrete/continuous choice models with general corner solution

choice modeling, Quadratic Box-Cox utility function, statistical analysis

Designing contingent valuation scenarios for environmental health: The case of childhood asthma

Valuation of morbidity associated with childhood asthma is significant both to policy and to non-market valuation methodologies. Our results show that household perceptions and beliefs, such as belief in one’s ability to predict and control asthma attacks, and relative perceptions of the overall burden asthma places on a family, have a larger impact on valuation than traditional measures of asthma severity. More generally, our approach can be applied to other chronic illnesses as well, such as diabetes or chronic pain

Designing contingent valuation scenarios for environmental health: The case of childhood asthma

Valuation of morbidity associated with childhood asthma is signi…cant both to policy and to non-market valuation methodologies. Our results show that household perceptions and beliefs, such as belief in one’s ability to predict and control asthma attacks, and relative perceptions of the overall burden asthma places on a family, have a larger impact on valuation than traditional measures of asthma severity. More generally, our approach can be applied to other chronic illnesses as well, such as diabetes or chronic pain

The economic valuation of the recreational benefits of Dichato Beach (Tome-Chile)

Evaluacion economica; Ocio; Viajes;