What Do Respondents Bring to Contingent Valuation? A Comparison of Monetary and Labor Payment Vehicles

With contingent valuation, both the goods being valued and the payment vehicles used to value them are mostly hypothetical. However, although numerous studies have examined the impact of experience with the good on willingness to pay, less attention has been given to experience with payment vehicles. This paper examines how this influences responses to a contingent valuation scenario of maintenance for irrigation canals. Specifically, the paper uses a split-sample survey to investigate the effects of experience with monetary and labor payment vehicles on the acceptance of a contingent valuation scenario and protest bids. Using convergent validity tests, we found that experience acquired from using both monetary and labor payment vehicles reduces the asymmetries in acceptance rates. These findings suggest that experience with payment vehicles reduces time/money response asymmetries in the contingent valuation method.contingent valuation, payment vehicles, numéraires, experience

Valuing the ecosystem service benefits from kelp forest restoration: A choice experiment from Norway

Habitat loss and degradation are recognised as the most important causes of species decline and extinction in marine ecosystems. It is also widely recognised that a range of restoration actions are now essential to halt further decline. From a policy perspective, demonstration that restoration activity is in the interest of society is an important goal. In this paper, the welfare impacts of restoring Norwegian kelp forests to areas where they once were dominant but which now lie barren are estimated using the discrete choice modelling approach. The paper also examines if more direct contact with the environmental good under investigation influences respondents' willingness to pay to restore ecosystem features. The results indicate a positive and significant marginal societal willingness to pay for the ecosystem services associated with kelp forest restoration. The enhanced biodiversity levels as a result of the restoration activity are the most highly valued by the Norwegian public although the size of the area restored is more highly valued by respondents who are active marine environment users. It is argued that without incorporating these non-market values into the decision making process marine policy decisions may be made that are not in fact in the best interest of society

Use and non-use values in an applied bioeconomic model of fisheries and habitat connections

In addition to indirect support to fisheries, marine habitats also provide non-use benefits often overlooked in most bioeconomic models. We expand a dynamic bioeconomic fisheries model where presence of natural habitats reduces fishing cost via aggregation effects and provides non-use benefits. The theoretical model is illustrated with an application to cold-water corals in Norway where two fishing methods are considered—destructive bottom trawl and non-destructive coastal gear. Non-use values of cold-water corals in Norway are estimated using a discrete choice experiment. Both the theoretical model and its empirical applications demonstrate how non-use values impact optimal fishing practices

The marine plastic litter issue: a social-economic analysis

The issue of marine plastic litter pollution is multifaceted, cross-sectoral, and ongoing in the absence of appropriate management measures. This study analysed the issue of marine plastic litter pollution in the context of the Descriptor 10 of the Marine Strategy Framework Directive and Good Environmental Status of the oceans and seas. The Driver-Pressure-State-Impact-Response (DPSIR) framework was used to assess the causes, e ects, and management measures to changes in the marine environment resulting from marine plastics pollution. We noted that less than 10 peer-reviewed publications have applied the Driver-Pressure-State-Impact-Response (DPSIR) model to the issue of marine plastics pollution. Some basic needs such as food security, movement of goods and services, and shelter are also some of the major drivers of marine plastic pollution. The use of plastics is linked to multiple economic sectors (fisheries, agriculture, transport, packaging, construction) and other human activities. A significant amount of the resulting pressures came from the economic sectors for packaging and construction. State changes occurred at the environmental (contamination and bioaccumulation), ecosystem (ingestion of plastics, ghost fishing) and ecosystem service levels (supply of sea food, salt and cultural benefits), with possible loss of jobs and income being some of the observed impacts on human welfare. Responses as management measures, which are tailored to meet each component of the DPSIR framework, were identified. These included policies, regulations, technological advancement and behavioural change. The research acknowledges the issue of marine plastics pollution as a global environmental problem and recommends a trans-disciplinary approach, involving all types of stakeholders. Future research and analysis applying the DPSIR framework will be useful to provide the information necessary for the e ective, adaptive management of litter pollution by marine plastics.PLASTICSEA- Impact of Microplastics in the Ocean, Sea Salt and Aquaculture FA-06-2017-0046; FCT: UI/MAR/00350/2020:info:eu-repo/semantics/publishedVersio

Non-use Values in Natural Resource Management – A Bioeconomic Model of Fisheries and Habitat

As fisheries management becomes more collaborative by seeking input and involvement from stakeholders, it is important to understand and address the diversity of those stakeholders. Gulf Coast fisheries communities include diverse racial and ethnic groups, particularly a large number of Vietnamese Americans involved in all aspects of the seafood industry. Recent disasters, including hurricanes and the BP Macondo oil spill, have exposed a number of communication barriers between state and federal agencies and the Vietnamese American fishing community on the Gulf Coast as well as a lack of reliable socioeconomic data on Vietnamese American fishers and their management and governance priorities. This research focuses on a mixed methods approach to create a database of key baseline socioeconomic data on the Vietnamese American communities affected by fishery management in Mississippi and Alabama and as well as to identify avenues and barriers for communication between Vietnamese American fishers and state and federal fisheries-related agencies in the region. In doing so, we discuss using a combination of 1) face-to-face surveys with Vietnamese Americans in the fishing industry, 2) interviews with representatives of relevant state and federal agencies, 3) interviews with community organizations and key informants, and 4) focus groups with Vietnamese Americans in different aspects of the fishing industry. Collection of this type of data will be used in identifying potential strategies to improve engagement of Vietnamese American stakeholders in the region and be crucial to understand the current and future consequences of management choices for diverse stakeholders.Keywords: Bioeconomic Modeling and Fisheries Management, Fisheries Economics, Ecosystem Based Managemen

Are non-monetary payment modes more uncertain for stated preference elicitation in developing countries?

An increasing number of stated preference studies adopt both monetary and non-monetary payment modes to elicit preferences for goods and services in developing and transition countries. The extent to which these alternative payment modes approximate the underlying human preferences for these goods and services is poorly understood. The circumstances under which monetary and non-monetary welfare measures can be combined for efficient estimation of welfare measures and to guide public resource allocation also remain unclear. In a split-sample design, we present a choice experiment on the purchase of flood insurance in which insurance premiums are paid in money, labour time and harvests. We use an integrated choice-modeling framework to test for differences in relative scale parameters among these three alternative payment modes. We find that the relative scale parameters for non-monetary payment modes are lower than the relative scale for monetary payment mode. We argue that the two non-monetary payment modes exhibit higher degrees of uncertainties in the choice experiment. We discuss possible causes and the implications of these results for the design of stated preference studies and the use of resulting welfare measures in cost-benefit analyses

The effect of fertilizer subsidies on investment in soil and water conservation and productivity among ghanaian farmers using mechanized irrigation

The fertilizer subsidies reintroduced in various sub-Saharan African countries from 2007 aim to increase agricultural production and assist in the development of fertilizer markets. The present study evaluates the impact of a fertilizer subsidy program among farmers in Ghana who employ highly mechanized irrigation systems. The results indicate that farmers who received fertilizer under the subsidy program used 45% more fertilizer. However, they did not use more weedicide and were likely to reduce investment in soil and water conservation. Thus, the income gains resulting from the subsidy programs were not invested in such non-targeted inputs. Moreover, the program beneficiaries’ reduced investment in soil and water conservation may explain the finding that the subsidy did not improve their productivity. Thus, since fertilizer subsidy programs alone may not improve productivity, it may be necessary to target spending explicitly on complementary inputs such as investing in soil and water conservation

The Effect of Fertilizer Subsidies on Investment in Soil and Water Conservation and Productivity among Ghanaian Farmers Using Mechanized Irrigation

The fertilizer subsidies reintroduced in various sub-Saharan African countries from 2007 aim to increase agricultural production and assist in the development of fertilizer markets. The present study evaluates the impact of a fertilizer subsidy program among farmers in Ghana who employ highly mechanized irrigation systems. The results indicate that farmers who received fertilizer under the subsidy program used 45% more fertilizer. However, they did not use more weedicide and were likely to reduce investment in soil and water conservation. Thus, the income gains resulting from the subsidy programs were not invested in such non-targeted inputs. Moreover, the program beneficiaries’ reduced investment in soil and water conservation may explain the finding that the subsidy did not improve their productivity. Thus, since fertilizer subsidy programs alone may not improve productivity, it may be necessary to target spending explicitly on complementary inputs such as investing in soil and water conservation.Validerad;2021;Nivå 2;2021-08-10 (alebob);Finansiär: Elforsk</p

Traditional beliefs and willingness to pay for improving a mining-polluted river in Ghana

Pollution of water resources is a widespread challenge across the globe which requires effective policy measures. However, in many instances, state institutions are weak in addressing these problems. One then wonders what alternative management regimes can be used in place of public policies. This study examined the willingness to pay (WTP) for the improvement of the Ankobra River, a mining-polluted river in the Western Region of Ghana, using the contingent valuation method. Primary data was collected from 611 respondents from 8 communities in the Prestea-Huni Valley Municipality and were analysed using probit and interval regression models. The findings suggest that respondents were concerned about the current polluted state of the Ankobra River and traditional beliefs regarding the spiritual value of the river were still very relevant to them. Consequently, respondents with the belief that the river is an abode of gods as well as natives who believe that Ankobra River is a god were more likely to pay for the improvement of its water quality. Surprisingly, respondents who believed that the river is a god had a lower WTP. Income, natives, existence value, secondary and tertiary education also had positive significant association with WTP, older respondents were less likely to pay while respondents with bigger household sizes, and the divorced had lower WTP. The estimated mean WTP for water quality improvement of the Ankobra River is GHC 51.52 ($6.62) per annum. Local community involvement in policy decision-making regarding water resources is key