scholarly journals Undesirable Epsilon-Based Model DEA Application for Chinese Natural Disaster Mitigation Efficiency

SAGE Open ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 215824402110407
Author(s):  
Ying Li ◽  
Hongyi Cen ◽  
Tai-Yu Lin ◽  
Yung-ho Chiu

As natural disasters cause significant damage, many countries have developed disaster mitigation plans to reduce losses. Because China has frequent natural disasters in its geographically diverse territory, over the past few decades, the Chinese government has promulgated regulations and developed plans to mitigate the loss of life and property in natural disasters. To analyze the natural disaster mitigation efficiency in 27 Chinese provinces, this article employed a modified Epsilon-Based Measure (EBM) Data Envelopment Analysis (DEA) model. It was found that while Sichuan, Guangdong, Hebei, Shandong, and Chongqing had good efficiencies, there were significant variances across the provinces, and, in general, significant improvements were needed. Previous natural disaster efficiency research has examined disaster management and performance evaluations, employed static DEA models, and tended to ignore the radial and non-radial characteristics. Therefore, this article is the first comprehensive examination of recent natural disaster mitigation efficiencies in Chinese provinces.

2011 ◽  
Vol 26 (S1) ◽  
pp. s126-s127
Author(s):  
W. Zhang

IntroductionChina is one of the countries most affected by disasters caused by natural hazards. Disasters comprise an important restricting factor for economic and social development.MethodsRetrospective analysis was performed based on the epidemiological data of disasters caused by natural hazards in recent two decades.ResultsThe deadliest disaster that was reviewed was the Sichuan, Wenchuan earthquake on 12 May 2008 with a death toll of 88,928. Floods were the the primary natural hazard resulting in disaster in China. The economic loss caused by natural disasters was huge, the Sichuan earthquake alone resulted in an economic loss of 845.1 billion Chinese Yuan. However, psychosocial factors did not receive attention by Chinese Government and academics.ConclusionsThe characteristics and impact of disasters should be analyzed to scientifically provide useful information for natural disaster mitigation in China.


Author(s):  
Alfiatus Safa’ah

Frequent natural disasters in various areas of Indonesia always need responsive mitigation efforts. In education, this role can be realized by developing teaching materials of natural disaster mitigation. The research was conducted at SDN Tanjungrejo 4 Malang with the research object of 39 fifth grade students. The purpose of this research and development of these materials include to know the process and to know the effectiveness of development of integrative thematic teaching materials in the content of natural disaster mitigation for the fifth grade students. This research is categorized in the Research and Development that was developed by Walter Dick and Lou Carey’s develepomental models. Feasibility of teaching materials can be seen from the validation results of the content’s expert of 94.6%, result validation of the design’s expert is 95.6%, the teacher of fifth grade students is 89.3%, and the students of fifth grade is 86.7% which as a whole can be said to be a valid teaching materials and feasible to use. The effectiveness of this teaching material can be seen from the increasing of the average of student’s learning outcomes. Before the teaching materials were implemented, the average of student’s learning was 58.27 and after using learning materials, the average score was increased to 80.02.


2015 ◽  
Author(s):  
Maricruz A. Fun-sang ◽  
Jean-David Caprace

The world merchant fleet has increased in the last decade producing an increase of fuel consumption and greenhouse gas emissions (GHGs). Thus, the concerns of ship-owners to implement alternatives to improve the fleet efficiency are growing. However, shipowners are facing barriers to implement energy efficiency technologies mainly due to reliability, financial and economic constraints as well as complexity of change. Actually several shipowners are using onboard data measurements systems that collect navigation and propulsion information of their ships. Therefore, after being sent via satellite and stored in data warehouse, these data are being made available to assess the performance of their fleets. This paper describes the use of these data to generate models in order to answer to the following questions: What is the ship with least efficiency in my fleet? What is the best strategy to improve the overall efficiency of my fleet? What is the ship that I should sell in priority? What is the influence of this maintenance policy on the performance of my fleet? The application case of this paper is based on one fleet of 13 ships containing 223 trips that gather approximately 6,844 traveling days. After the definition of the key performance indicators (KPIs), a data envelopment analysis (DEA) models is discussed. Then, a multicriterion decision analysis (MCDA) model is compared to the DEA outputs. The results suggest that this new methodology can efficiently provide a multicriteria decision framework to shipowners avoiding engineers’ subjectivity. These findings offer a new way to address efficiency and performance in ship management.


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Hui Ding ◽  
Zhongbao Zhou ◽  
Helu Xiao ◽  
Chaoqun Ma ◽  
Wenbin Liu

In financial markets, short sellers will be required to post margin to cover possible losses in case the prices of the risky assets go up. Only a few studies focus on the optimization and performance evaluation of portfolios in the presence of margin requirements. In this paper, we investigate the theoretical foundation of DEA (data envelopment analysis) approach to evaluate the performance of portfolios with margin requirements from a different perspective. Under the mean-variance framework, we construct the optimization model and portfolio possibility set on considering margin requirements. The convexity of the portfolio possibility set is proved and the concept of efficiency in classical economics is extended to the portfolio case. The DEA models are then developed to evaluate the performance of portfolios with margin requirements. Through the simulations carried out in the end, we show that, with adequate portfolios, DEA can be used as an effective tool in computing the efficiencies of portfolios with margin requirements for the performance evaluation purpose. This study can be viewed as a justification of DEA into performance evaluation of portfolios with margin requirements.


2018 ◽  
Vol 8 (3) ◽  
Author(s):  
Fithra Luthfi Bahri Zaqy ◽  
Suyono Thamrin ◽  
Lasmono Lasmono

<p>Kodim 0618/BS of Bandung City is a unit of Military District Command under the Kodam III/Siliwangi Command which oversees as many as 14 Koramil that are spread in the area of Bandung City. With 14 Koramil spread across the city of Bandung, Kodim 0618/BS has 347 personnel and stands by itself because it is not under the Korem and tasked with regional empowerment, defense and preparing all aspects of regional defense including having their own programs and handling in reducing the risk of natural disasters. This research is conducted to find out the role of Kodim 0618/BS in the Effort of Reducing Natural Disasters in Bandung, which has a high potential for natural disasters because it is located between the Lembang Fault and geographically is in the form of a basin which means it has a high risk of flood. This study employs qualitative method. The data was obtained through observation, interviews and library studies. Descriptive analytical techniques were employed in conjunction with data collection when researchers were in the research site – Bandung. The research finds that 1) The role of Kodim 0618/BS in Efforts of Reducing Natural Disasters is essential with Dandim being the deputy chairman in the Satlak of Disaster Mitigation and Reduction and 2) Bandung City uses the Fire Department and Natural Disaster Management as an organization responsible for Natural Disaster Management 3) There is a lack of Disaster Mitigation Experts, hence special training for personnel is needed</p><p><strong>Keywords:</strong> Disaster Management, Natural Disaster, Main Duty of TNI</p>


Kosmik Hukum ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 1
Author(s):  
Natalia Yeti Puspita

The threat of natural disasters in Indonesia can occur at any time and has caused suffering for humanity. The tourism industry also feels the impact and consequences of natural disasters. Tsunami on the coast of Banten at the end of 2018 has caused economic losses of up to hundreds of billions in the tourism sector. Mitigation of natural disasters, especially in the tourism industry, is still lacking the attention of the government. In the disaster management system, the state is the main actor who has full responsibility for dealing with the effects of natural disasters. The Government of Indonesia in 2005 ratified the 2005-2015 Hyogo Framework for Action as the government's guidelines in dealing with natural disasters, especially in the field of natural disaster mitigation. This study examines the implementation of HFA concerning natural disaster mitigation in the Special Economic Zone of Tanjung Lesung-Banten, and Cikadu Tourism Village Community. Socio-legal research is used as a research method and uses qualitative data analysis that is analytical descriptive and emphasizes primary data as the main data. This data was obtained by interview and observation. As for supporting primary data, library research is conducted. Based on the results of the study it can be seen that the Government of Indonesia has implemented the HFA by making Law No. 24 of 2007 concerning Disaster Management, but in practice law enforcement has not been felt by Banten coastal communities other than that there is no habit or cultural awareness of disaster response in the community.


2021 ◽  
Vol 13 (2) ◽  
pp. 171
Author(s):  
Rina Fitri ◽  
Sulastri Sulastri ◽  
Ismail AB

The Indonesian government has made efforts to restore the structure and development of school responses, including increasing knowledge, skills, and disaster management operating systems in schools. School leaders and teachers are expected to balance the need for standard operating procedures with the ability of organizational structures to respond to specific problems caused by disasters. Teacher enhancement is expected to provide a more active role for students and overcome their stress in post-disaster situations. This study aimed to examine the perspective of high school teachers on knowledge of natural disasters and natural disaster mitigation. A descriptive statistical approach is used to describe and explain teacher knowledge and mitigate natural disasters. Explaining how much influence or relationship between teachers' knowledge on disaster mitigation is done. The sample in this study was high school teachers in Aceh province, with 389 teachers. The research data collection used an instrument in the form of a questionnaire. The results showed that the perspective of high school teachers regarding knowledge of natural disasters was in the high category on average; the average teacher knew general knowledge of natural disasters, signs of catastrophe, classification of natural disasters, and causes of natural disasters. Not much different from the results of the teacher's perspective regarding natural disaster mitigation in the very high category, planning in the mitigation process, policies, operational disaster procedures, signs of disaster evacuation have been recognized by SMA teachers in Aceh province. The level of knowledge of high school teachers with mitigation has a significant relationship, so the higher the knowledge of high school teachers about natural disasters, the more high-school teachers can mitigate against natural disasters.Keywords: Teacher's Perspective, Natural Disaster Knowledge, Natural Disaster Mitigation, Regression Analysis


2019 ◽  
Author(s):  
muhammad ahsan samad

Palu City is one of the provincial capitals in Indonesia which is right on the Equator line. In addition, this city is one of the many regions in the eastern part of Indonesia that have a considerable potential for natural disasters. The natural disaster that occurred in Palu on September 28, 2018 consisted of three types of disasters, the first was an earthquake, the second tsunami and the last was liquefaction. This natural disaster caused damage to supporting infrastructure and thousands of people died. The large number of fatalities illustrates that the preparation and preparedness of the community and local government authorities are still low, mainly due to a lack of knowledge and concern for these natural phenomena and their consequences. The earthquake and tsunami disaster that took place in the city of Palu Sigi and Donggala was a momentum to change the paradigm of disaster management by increasing community preparedness. This research tells the story of the phenomenon of the three natural disasters, also tried to explain the steps and design of disaster mitigation. Disaster Mitigation must be implemented to reduce the risk of natural disasters. Public policy about community preparedness towards disaster management is very important and urgent to do in order to reduce disaster risk. Disaster cases in Palu City as a case study are considered relevant for the implementation of disaster management systems.


2018 ◽  
Vol 114 (1/2) ◽  
Author(s):  
Enagnon H. Fanou ◽  
Xuping Wang

We used a data envelopment analysis (DEA) to examine the efficiency and performance of transport systems of landlocked African countries (LLACs). We conducted a comparative performance efficiency analysis of transfer transport systems for LLACs’ corridors. Three different types of DEA models were proposed and used to measure the relative efficiencies of transit transport using a 6-year data set (2008–2013) of some selected LLACs. The results show that the average pure technical and scale efficiency scores are 90.89% and 37.13%, respectively. Two units (13.33%) are technically efficient (technical and scale efficiency) while four units (26.66%) are only purely technically efficient over the observed period. Swaziland was the most efficient corridor while the Central African Republic corridor was the least efficient throughout the monitored years. The results indicate the relevance of minimising trade costs to stimulate landlocked countries’ exports.


2020 ◽  
Vol 7 (9) ◽  
pp. 183-192
Author(s):  
Aris Sarjito

Abstract Indonesia is the country that has the most active volcanoes in the entire world. The Eurasian Plate, the Pacific Plate, and the Indo-Australian Plate are three active tectonic plates that cause collision zones to form these volcanoes. Indonesia is estimated to have 129 volcanoes, all of which are carefully monitored by the Centre for Volcanology and Geological Disaster Mitigation. This is done because several volcanoes in Indonesia continue to show activity. Moreover, it is estimated that more than five million people live in the "danger zone" of a volcano where they must be immediately evacuated if the mountain shows significant upward activity (Indonesia-Investment, 2019). However, efforts to reduce the risk of natural hazards remain largely uncoordinated in different types of hazards and do not necessarily focus on areas with the highest disaster risk. This paper uses a descriptive qualitative approach as the main writing approach and uses crisis management theory by Rosenthal, that crisis management involves efforts: (1) to prevent a crisis from occurring; (2) to prepare better protection against the impact of crisis agents; (3) to make effective responses to the actual crisis; and (4) to provide plans and resources for post-crisis recovery and rehabilitation. The results of this study are: (1) to accelerate forest recovery, the government can engage the community with security and welfare approach; (2) natural disaster management is the main responsibility of the government; (3) In crises due to natural disasters, form a team that is responsive to critical situations. This team was formed by involving government agencies, community leaders, and NGOs; and (4) to increase the government's capacity to reduce the impact of natural disasters, assessment of potential damage, the establishment of an early warning system, and the improvement of disaster-resistant capabilities are needed. Keywords: Crisis Management; Natural Disaster; Policy.


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