Household Customers’ Cost of Interruption: Survey Study on Summer Electricity Peak of Xi’an City

In light of China’s Carbon Neutrality Target and facing the fluctuating pressure of power supply brought on by new energy intermittent power generation, it is urgent to mobilize a large number of residential flexible loads that can respond instantaneously to mitigate peak–valley difference. Under a framework of demand-side management (DSM) and utility analysis, we empirically investigate customers’ costs from interrupting typical electrical terminals at the household level. Specifically, by using the contingent valuation method (CVM), we explore the factors that affect households’ Willingness to Accept (WTA) of voluntarily participating in the interruption management during the summer electricity peak and estimate the distribution of households’ WTA values. We find that given the value of WTA, households’ participation rate in the interruption management significantly decreases with the increase in interruption duration and varies with the type of terminal appliance that is on direct interruption management. Moreover, the majority of households are willing to participate in the interruption management even if the compensation amount is low. The factors that determine households’ WTA and the size of their influences vary with the type of electrical terminal. The results imply that differentiating the terminal electricity market and accurately locking on the target terminals by considering the household heterogeneity can reduce the household welfare losses arising from DSM.

Community awareness and participation in biodiversity conservation at Phong Nha-Ke Bang National Park, Vietnam

Truong DD. 2021. Community awareness and participation in biodiversity conservation at Phong Nha-Ke Bang National Park, Vietnam. Biodiversitas 23: 583-594. Local community's perception and attitude towards biodiversity conservation are essential to the sustainable management of national parks in Vietnam. The conservation of biodiversity in national parks is facing pressures from economic development activities, which has led to the degradation of the ecological values ??of the national parks. People's awareness and their participation in conservation management are crucial to the sustainable management of national parks. This study examined the awareness and participation of local people in biodiversity conservation at Phong Nha-Ke Bang National Park (PN-KBNP), Vietnam. PN-KB is one of the national parks with the highest biodiversity values ??in Vietnam and is recognized by UNESCO as a world heritage site. To assess participation in conservation management, the study implemented a Contingent Valuation Method for estimating the willingness to pay of households in the buffer zone for biodiversity conservation in PN-KBNP. A survey was implemented to 358 households randomly selected in five communes adjacent to the park. Focus group discussions and in-depth interviews with selected key informants were also practiced for the management of insight information. The result showed that local villagers generally hold a fairly high perception of biodiversity values and positive attitudes towards biodiversity conservation at PN-KBNP. This positive perception comes from the close interaction between household livelihoods and the national park on a daily basis. However, awareness of national park management rules are not high. In addition, local people are willing to sacrifice part of their income to conserve biodiversity for current and future generations. On an average, each household was willing to pay 297,000 VND/year for biodiversity conservation. Payment levels, age, length of residency and education were observed to significantly impact on villagers' participation in biodiversity conservation initiatives. The balance between development and conservation was found to be the key in Park management, where communities need to be given more power to plan, monitor and implement conservation activities while establishing clear forest land user right for households and communities.

Cost Estimations of Water Pollution for the Adoption of Suitable Water Treatment Technology

This study analyzed the cost implications of using suitable technologies and the cost of inaction when addressing water pollution. This was achieved by developing three main models for the costs (model one) and benefits (model two and model three). The first model accounts for the operational costs of adopting suitable technologies, namely the use of diatomaceous earth for textile wastewater treatment. The second model analyzed the cost of inaction through analyzing the cost of treatment for water pollution-related diseases for the affected population. The occurrence and cost of treatment for three diseases, namely diarrhea, amoebiasis and bacterial infection, were used as indicators of water pollution in the area. The third model included the contingent valuation method (CVM) data on the willingness to pay for environmental restoration of the surveyed population. The benefit–cost ratio (BCR) of the resulting data from the three models were used to highlight the economic viability of the proposed project. A BCR of (0.67) for the cost of the proposed project versus the benefits of the project on human health using data from one hospital was obtained. There is a high possibility that the real BCR would increase if more data from other hospitals or other diseases were included. The results imply that the use of D.E can be considered a good candidate for treating wastewater. To thoroughly discuss the BCR of treating wastewater from one factory, the BCR of the proposed restoration project along River Sosiani, and the value of using DE as suitable technology, more studies are needed to evaluate the unaccounted costs and benefits for accurate economic estimations of the proposed project. The outcome of the study is a framework of numbers and figures that can be presented to decision makers and policy makers as critical information when making decisions.

Are Potential Tourists Willing to Pay More for Improved Accessibility? Preliminary Evidence from the Gargano National Park

Due to the recent COVID-19 pandemic, tourist destinations have been increasingly selected on the basis of health, safety and social distancing criteria. In this framework, protected natural areas represent ideal tourist destinations due to the presence of wide and open spaces, services for tourists and attention to nature. The present paper focused on accessible tourism, a subset of sustainable tourism that is increasingly gaining greater importance within the tourism sector. By applying the Contingent Valuation Method, the study investigated whether potential tourists are effectively willing to pay extra money to be granted more accessible facilities in a natural area. To this end, a logit model was estimated to determine the probability that tourists exhibit a higher WTP for accessible tourism facilities. The analysis was carried out in the Gargano National Park, Southern Italy, an area traditionally characterised by large tourist flows that have increased further during the recent pandemic. The results showed that only a limited percentage of the respondents are willing to pay a higher amount for improved accessibility. These results represent an interesting starting point to outline an adequate strategy for the tourism valorisation of the natural area.

How to manage the Value of Drinking water by using Extension on the Contingent Valuation Method

This paper examines an explanatory policy in the management of drinking water in Tunisia. Indeed, the price variable, while is considered, in general way, as a confident indicator in the regulation of drinking water consumption, it seems to be insufficient since the management of drinking water is influenced by other set of variables such as: the revenue level of households, the consumption of bottled water, the alternative sources, the household size and, above all, the quality variable, which presents an enormous variability inter- and intra-regions. Through our study, we have shown, that the variation in willingness to pay (WTP) is essentially due to psychological and subjective consideration (the degree of importance of these variables in the scale of preferences of consumers).

Sustainable management of a marine protected area in Vietnam: An application of visitors’ willingness to pay for conservation in Cu Lao Cham

As an important area in terms of biodiversity and fish stocks in Vietnam, Cu Lao Cham or Cham Islands (CLC) marine protected area (MPA) is under increasing threat from human activities. Conservation efforts have recently been implemented but economic analysis of the CLC MPA’s natural values did not investigate what may affect policy decisions on CLC MPA’s sustainable development. Using a structured questionnaire and a payment card technique (based on the contingent valuation method), we estimate visitors’ willingness to pay (WTP) for conservation of marine resources in the CLC MPA. The log-normal regression results indicate that the visitors’ WTP for conservation is affected by their characteristics, perceptions of environmental protection and conservation, and their assessment of the current CLC MPA entrance fee. Visitors are WTP an additional amount of US$2.26 per person for conservation while visiting the CLC MPA. This indicates that with the introduction of the proposed entrance fee (the mean WTP added to the current entrance fee), the CLC MPA management would not only have sufficient funds for their management and conservation programmes, but also that the number of visitors may decline slightly, which would reduce some of the pressure on the environment, natural resources, and coral reefs.

Valor económico de la conservación de la biodiversidad: el caso del Parque Nacional Yanachaga-Chemillén

The present study determined the willingness to pay for the conservation of the biodiversity (WTP) of the Yanachaga-Chemillén National Park (YChNP), applying the contingent valuation method, in hypothetical scenarios of conserving 6, 9 or 12 species that guaranteed protection of 50 % of the functionality of the ecosystems of this place. It was found that the WTP was determined by the functional characteristics that key species play in the resilience of the PNYCh ecosystems. For this reason, similar studies should evaluate the option of preferring the use of functionality instead of indicators based, for example, on the number of species.

Visitor’s Willingness to Pay for National Park Entrance Fees in China: Evidence from a Contingent Valuation Method

China has been making efforts in nature conservation by developing a new national park system. Setting a fee-based entrance policy for the newly established national parks can be challenging without information on visitors’ willingness to pay (WTP). Thus, this study aims to evaluate visitors’ WTP entrance fees with a dataset of 1215 visitors collected in China’s planned Qinling National Park (QNP). Using the double bounded dichotomous choice format of the contingent valuation method, we obtained the mean WTP for the entrance fee of QNP of 200 yuan. Visitors’ demand becomes relatively inelastic at the recommended entrance fee of 160 yuan when the expected ticket revenue will reach its maximum of 13.8 billion yuan. Our study also indicates that visitors’ WTP is significantly influenced by their gender difference, education level, income, number of trips to natural attractions, duration of stay, the intention of a future visit, and concern about commercial exploitation. Our empirical study provides insights into developing effective pricing policies and appropriate marketing strategies for China’s new national park system.

Recreational Value Assessment of Urban Productive Landscape of Baguatian in Hangzhou Based on Contingent Valuation Method (CVM) and Cloud Computing

Cloud computing has achieved rapid development in recent years, and the use of cloud platforms to carry various large-scale services has become the general trend of the development of the information industry. This study investigates WTP of Hangzhou residents for the recreational value of Baguatian productive landscapes based on CVM and cloud computing. In this study, we did the related analysis on the social and economic characteristics and WTP of interviewees and made the monetization assessment about the recreational value of its urban productive landscapes. The result shows 62.1% of interviewees have WTP and the average payment intention (WTP) is $40.74 per year. Besides, the total recreational value of Hangzhou Baguatian productive landscapes is 354 million yuan; the relatively accepted payment mode is tax-paying and cash payment; the educational degree, occupational background, and income are the main factors influencing the tourists’ WTP and the correlation between interviewees’ origin, permanent residence, and WTP is not apparent.