scholarly journals Valuation of water purification service of Renukawetland, India: A Ramsar site

2021 ◽  
pp. 219-226
Author(s):  
Rahul Yadav ◽  
Tara Chand ◽  
Raman Nautiyal

Wetlands are very important ecosystems from the ecological, productivity and conservation perspective. Economic valuation of ecosystem services provided by wetlandsquantifies the various benefits derived from wetlands and puts a value on their conservation. One such wetland of importance is the Renuka wetland, which is a natural wetland located in the Western Himalayas, in the State of Himachal Pradesh of India. The article aims to assess and evaluate the wetland for its water purification service. The study is based on multisource data and conventional evaluation method. The results show that the average depth of the Renuka wetland is 6.01 m and average volume was determined as 1072530.176 m3. The economic value of water purification service for Renuka wetland is estimated to be INR 31.9 million(0.44 million USD) thus identifying the Renuka wetland as a significant healthy ecosystem. The water purification value itself advocates its proper management and conservation.

2009 ◽  
Vol 13a (1) ◽  
pp. 149-159 ◽  
Author(s):  
Jan Tyszka

Estimation and economic valuation of the forest retention capacities Based on results concerning the forest impact on water cycling an attempt was undertaken to evaluate water retention in forests. The economic value of water retention was established assuming the cost of water storage in small reservoirs built in forest areas. Calculations did not account for differences resulting from different functions of naturally retained water and that stored with the use of technical methods. Considering volume and time of water retention in forests, the annual value of natural water retention in forests calculated per average hectare of the country area was estimated at 800 zł.


2021 ◽  
Vol 12 ◽  
pp. 204062072110274
Author(s):  
Joanna P MacEwan ◽  
Istvan Majer ◽  
Jacquelyn W Chou ◽  
Sumeet Panjabi

Aims: This study quantifies the value of survival gains attributable to novel treatments approved since 2003 for United States (US) patients with relapsed/refractory multiple myeloma (RRMM). Methods: We estimated the increase in survival attributable to lenalidomide and bortezomib for multiple myeloma (MM) patients in the 1983–2013 Surveillance, Epidemiology, and End Results (SEER) registry. To estimate the survival benefit of treatments approved since 2015 (carfilzomib, elotuzomab, daratumumab, used in combination with lenalidomide and dexamethasone) we used clinical trial data to calibrate survival estimated using the SEER data. We then conducted an economic valuation of the estimated shift in survival curves for all therapies. Finally, we estimated the share of the value accruing to patients and manufacturers using treatment costs estimated from MarketScan data. Results: The introduction of bortezomib in combination with dexamethasone (Vd) and lenalidomide in combination with dexamethasone (Rd) resulted in substantial survival gains and societal value for multiple myeloma patients, generating 1.7 additional life-years per RRMM patient. More recently, approved novel treatments have improved survival over effective treatments (i.e. Rd/Vd) by an additional 2.5 life-years – the monetary value of this incremental survival benefit far exceeds the incremental cost of treatment. At the patient level, the incremental benefit of Rd/Vd is $335,500 and with novel treatments is $565,000. Applying this benefit to all future cohorts of US RRMM patients translates into a value of at least $75 billion and $130 billion with Rd/Vd and the novel treatments, respectively. Conclusions: SEER registry data were only available through 2013. Therefore, survival gains for recently approved treatments were estimated based on clinical trials, rather than observed survival. Our valuation analysis does not capture sources of value aside from survival gains, for example, better quality of life, increased productivity, or the value of surviving until subsequent novel therapies become available. Substantial extensions in life expectancy in RRMM since 2003 translate into real economic value gained by society.


2018 ◽  
Vol 68 ◽  
pp. 02009 ◽  
Author(s):  
Siti Dian Rosadi ◽  
Mufti Petala Patria ◽  
Nisyawati

Research regarding economicvaluation of mangrove forest in Taman Ayu Village, West Lombok Regency has been conducted. The purposes of this research were to calculate and analyze economic value of benefit from mangrove foresteco system. Collecting data was conducted through observations and interviews. Results of direct benefit economic value wereobtained fromdirect exploitation by local comunity. Direct value benefit of mangrove forest were Rp. 227.040.000/year. Indirect value benefit obtained frome cosystem service of mangrove forest with a value Rp.1.405.041.200/year. Existence value benefit was obtained by using method of CVM (Contingent Valuation Method)with a value Rp. 1.520.000/year. Option value benefit was obtained from biodiversity value with a valuewere Rp.1.200.000/year. Total Economic Value (TEV) of forest mangrove in Taman Ayu Village were Rp. 1.634.801.200/year.


2021 ◽  
Vol 28 (2) ◽  
pp. 118
Author(s):  
Mufti Petala Patria ◽  
Siti Dian Rosadi ◽  
Nisyawati Nisyawati

Research regarding economic valuation of mangrove in Gerung District, West Lombok Regency has been conducted. The purposes of this research were to calculate and analyze economic value from mangrove ecosystem at Gerung District. Research methods used observation and interviews. Direct Economic Value (DEV) were obtained from direct use of mangrove with a value IDR. 227,040,000/year. Indirect Economic Value (IEV)were calculated from mangrove ecosystem services with a value IDR. 1,405,041,200/year, Existence Value (EV) was obtained by Contingent Valuation Method (CVM) with a value IDR. 1,520,000/year. Option Value (OV) were calculated from biodiversity value with a value were IDR. 1,200,000/year. Total Economic Value (TEV) of mangrove in Gerung District were IDR. 1,634,801,200/year.


Jurnal Zona ◽  
2021 ◽  
Vol 3 (1) ◽  
pp. 34-44
Author(s):  
Rizal Muhtady ◽  
Thamrin Thamrin ◽  
Darwis Darwis

This study aims to determine the direct economic valuation, index value and sustainability status, and strategy for the sustainability of the mangrove ecosystem in Jangkang Village. The research method of calculating direct economic valuation is carried out using a market approach. To assess the index and status of sustainability with a multidimensional scaling (MDS) approach through the ordination technique Rapid Appraisal For Status Of Mangrove (Rap-Mangrove).  The results showed that in direct economic valuation, the shrimp fishing sector has a greater potential compared to other sectors. The total economic value of shrimp is IDR 1,440,000,000 / year, capture fisheries is IDR 686,400,000 / year and panglong charcoal IDR 447,500,000 / year. The multidimensional results of the index value and the status of the sustainability of the mangrove ecosystem in Jangkang Village obtained a value of 50.76 in the less sustainable category. The results of the analysis leverage show that of the 18 indicators, there are 10 sensitive indicators that affect the sustainability status of Jangkang Village. To increase the sustainability status of sensitive indicators, strategies that can be carried out include participatory rehabilitation, development of alternative livelihoods, counseling for the Akit Tribe to maintain local wisdom values, and intensive approaches to community leaders.


Author(s):  
Hung Thanh Nguyen ◽  
Anh Nu Phuong Ton ◽  
Hang Thi Cam Nguyen

Surface water sources in Ho Chi Minh City (HCMC) are being exploited for various purposes such as water supply for daily life, industry and services ; irrigation, animal husbandry, aquaculture ; navigation, environmental landscaping, waste reception and assimilation, etc. Each of these uses has its own benefits and values. However, up to now, the economic value of these water resources has not been fully appreciated and evaluated objectively. This paper presents an overview of the economic value of water resources and the economic valuation of some of the typical value types used in HCMC by 2016, including use for living, industrial, service, irrigation, transportation and environmental landscape.


2019 ◽  
pp. 26-54
Author(s):  
Daniel James Gooch

This article provides an estimate of the human capital value of migration to Reading in the period 1851-1871 to the town's economy. This is determined by estimating total net migration to the town across this period by age and sex and assigning all migrants a value for expected lifetime economic output less expected lifetime consumption costs. The final figures are contextualised by comparison with the value of social overhead capital used to fund significant local infrastructure projects in the same time period and show that, from a human capital perspective, the value of migration to Reading was very significant. This article thus addresses significant historiographical gaps in the study of Victorian labour migration to southern provincial towns and provides an original perspective to studies of the economic value of migration and its role in the growth of such communities.


Author(s):  
Simona Jokubauskaitė ◽  
Alyssa Schneebaum

AbstractWe propose an improved method to assess the economic value of unpaid housework and childcare. Existing literature has typically assigned a minimum, generalist or specialist’s wage, or the performer’s opportunity cost to the hourly value of these activities. Then it was used to calculate macro-level value based on the number of hours spent in this work. In this paper, instead of imputing an average or minimum wage for housework and childcare to determine a value to the work, we use the actual local wage rate requested for these services from providers on online platforms. Applying this method to Austrian Time Use Survey data shows that the value of unpaid childcare and housework, had it been paid, would be equivalent to about 22% of the 2018 GDP.


SAGE Open ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 215824402110095
Author(s):  
Jakub Dostál

The economic value of volunteering is an increasingly important part of volunteering management. It has become part of public policies. Some requests for proposals (RFP) enable nonprofits to include the value of volunteer time in compulsory co-financing. These RFP include the European Economic Area (EEA) Grants and Norway Grants. This article addresses the relationship in the value of volunteering, also called in-kind volunteering contributions. The research includes two case studies of finances from EEA and Norway Grants in the Czech Republic: the Czech NGO Programme, responsible for allocating grants between 2009 and 2014, and the Active Citizens Fund, responsible for allocating grants between 2014 and 2021. They share elements through the EEA and Norway Grants rules. However, they use different types of specialist replacement wages. The article summarizes the arguments for including in-kind volunteering contributions. It presents the possible values of these contributions in the selected cases, including the relationship between the type of volunteering and the number of hours necessary to achieve these values. The article defines the theoretical basis for calculating the value of in-kind volunteer contributions and illustrates this with real examples of allocations from EEA and Norway Grants.


Sign in / Sign up

Export Citation Format

Share Document