Wasting Time? Recycling Incentives in Urban Taiwan and Japan

What makes recycling work? We study the factors driving household waste disposal and recycling in 18 cities in Taiwan and Japan in order to understand the impact of alternative waste management incentives. We show that this depends on the effect of distinct policies on the relative costs of the main alternative disposal methods: recycling, disposal to landfill and illegal dumping. The willingness both to recycle and to dispose to landfill depends on the relative costs of the waste collection regime, and these are dominated by the time cost of alternative disposal methods. The higher the frequency of waste collection, the less recycling and the more disposal to landfill there will be. This is because frequent collection reduces the marginal time-cost of disposal to landfill. Curbside collection of recyclable material, and the frequency of that collection, has a similar effect on the recycling rate. Although direct incentives, such as unit pricing are important in the waste disposal decision, recycling depends primarily on management of the time-costs it involves.     

Differential Provision of Solid Waste Collection Services in the Presence of Heterogeneous Households

A model of household refuse production is presented in which individuals differ in their distaste for the waste stock and the supply of waste collection services is continuous in pick-up frequency. The inclusion of pick-up frequency into household solid waste management analyses has already been shown to have policy implications. In fact, even in the absence of the waste stock externality, a system of uniform consumption taxes and legal (or curbside) disposal and recycling subsidies has been found to be necessary (and sufficient) to induce households to socially optimally allocate their resources when illegal disposal (or simply dumping) incentives exist but a per unit punishment system for dumping is lacking. This policy is here concluded to be no longer feasible; instead, a system of differential consumption taxes and recycling subsidies and uniform legal disposal subsidies is found to be optimal (but possibly nonimplementable). In the presence of heterogeneous households, which are however identifiable on the basis of their relative location to the landfill site, an optimal and implementable policy is then shown to require a differential provision of collection services.     

Landfilling Versus ``Backstop' Recycling When Income Is Growing

The paper considers a dynamic model in which an income stream,growing over time, is optimally divided into consumption andexpenditures on waste disposal, the latter being optimally dividedbetween ``recycling'and ``landfilling.' Recycling is thoughtof as a ``backstop' waste disposal technology – it does notrequire landfill space but is a relatively expensive method ofwaste disposal. Landfilling uses up scarce landfill capacity. While conserving landfill space is the major reason themunicipality recycles, another motive for recycling might be thatrecycling itself generates utility. Our analysis suggests thatthe optimal recycling program varies considerably with bothlandfill capacity and initial income. For example, richermunicipalities are likely to introduce recycling much earlier inthe planning period than poorer municipalities. Thus whenlegislating recycling, national or regional governments must besensitive to the differences between municipalities.     

An economic analysis of the Packaging waste Recovery Note System in the UK

In order to cope with the increasing scarcity of final dump sites for household wastes, the UK recently introduced an environmental policy targeted at the firms that produce and sell products that generate packaging wastes. This policy requires such businesses to hold predetermined numbers of tradable credits called “Packaging waste Recovery Notes” (PRNs). This article provides insights into the economic implications of such a policy through a simple analytical model of a recyclable product and the PRN markets. Our analysis yields two particularly interesting results. First, an increase in the required recycling rate dampens the output and landfill waste levels, while the effect on the level of recycling activities is ambiguous. Second, an increase in the landfill tax always leads to an increase in the landfill waste. We also discuss how the socially optimal landfill tax in the presence of the PRN market should be chosen.     

基于运输负荷和稳定性的废弃物回收服务选址评价

废弃物回收中介在绿色经济和循环经济的落实和推进中,起着重要的促进作用,而回收服务选址问题则是研究废弃服务中介运行机制和实践模式的基础。以两点间最短距离的矩阵算法为基础,结合废弃物的运输负荷、运输稳定性,构建了工业区废弃物回收服务选址评价模型,并将该模型应用到某石化工业区渣油回收服务选址的案例中。结果表明,运输稳定度对服务选址的影响较大,并可将更多的衡量指标纳入评价模型中。     

Waste management regulation: policy solutions and policy shortcomings

A model of packaging waste management is presented to explore the policy options available to governments to implement waste regulation in light of the Extended Producer Responsibility (EPR ). Our model endogenizes the packaging design as an additional determinant for the overall amount of waste jointly with consumers’ sorting effort and producers’ output decisions. The model shows that the policies that yield the first‐best allocation may not find public support. Furthermore, if the set of available policy instruments is limited, production and consumption of the good is likely to settle on a sub‐optimal level even though the optimal allocation may be achievable. Finally, the model demonstrates that a landfill tax may actually increase landfill waste in the presence of tradable credits for recycling activities. The results shed light on some shortcomings of existing regulatory schemes such as the Producer Responsibility Obligations (Packaging Waste) Regulations of the UK .     

A waste management model for optimal recycling-landfilling policies under macroeconomic conditions

This research provides a waste management model in the presence of macroeconomic conditions. An optimal control problem which integrates the recycling-landfilling decision with industry supply-demand dynamics is designed to achieve the value-maximizing objective. The model simultaneously considers idiosyncratic technical and aggregate demand shocks, while the stoppage time for landfill use is assumed to follow a Cox process with the intensity function of a firm's total waste collection. The closed-form solution of the optimal recycling ratio is also derived. The results suggest that when macroeconomic effects are neglected, optimal recycling ratios tend to be underestimated.     

Design concept for the solid waste landfill site： a case study of Chuzhou City, China

1. Introduction Domestic waste has become a worldwide hazard. It has been listed in Preferential Programmes in China for 21st Century. The combination of the three techniques, the transformation of domestic waste into useful resources, the reduction of do- mestic waste and the innocent treatment of domes- tic waste is the long-term guideline in China. In the spirit of the guideline, several laws and regulations have been enacted, including Technical Standards of Municipal Solid Landfill, …     

浅谈新能源发展模式:园林废弃物生产乙醇技术

目前国内外关于园林植物废弃物的循环利用的主要处理方法,如焚烧、填埋、堆肥和粗加工等尚存在一定的缺陷和问题。为此,在对行道树的园林废弃物进行大量实验的基础上,提出园林废弃物生产乙醇的技术,既能有效利用园林废弃物,降低城市绿化维护成本,又能提供一种新能源发展模式,改善粮食生产乙醇的弊端,在一定程度上缓解我国的能源危机,具有巨大的经济、社会和生态效益。     

Costly location in Hotelling duopoly

We introduce a cost of location into Hotelling׳s (1929) [9] spatial duopoly model. We derive the general conditions on the cost-of-location function under which a pure strategy price-location Nash equilibrium exists. With linear transportation cost and a suitably specified cost of location that rises toward the center of the Hotelling line, symmetric equilibrium locations are in the outer quartiles of the line, ensuring the existence of pure strategy equilibrium prices. With quadratic transportation cost and a suitably specified cost of location that falls toward the center of the line, symmetric equilibrium locations range from the center to the end of the line.     

Municipal Waste Kuznets Curves: Evidence on Socio-Economic Drivers and Policy Effectiveness from the EU

Waste generation and waste disposal are becoming increasingly prominent in the environmental arena, from a policy perspective and in the context of delinking analysis. In general, waste generation is still increasing proportionally with income, and economic and environmental costs associated to landfilling are also increasing. This paper provides a comprehensive analysis of waste generation, incineration and landfill dynamics based on panel data for the EU₂₅, to assess the effects of different drivers (economic, structural, policy) and the eventual differences between Western and Eastern EU countries. We show that for waste generation there is still no Waste Kuznets Curve (WKC) trend, although elasticity to income drivers appears lower than in the past. Landfill and other policy effects do not seem to provide backward incentives for waste prevention, and in terms of landfill and incineration, as expected, they are respectively decreasing and increasing, with policy acting as a strong driver. Eastern countries appear to be performing generally quite well, thus benefiting from EU membership and related policies in terms of environmental performance. We can conclude that although absolute delinking is far from being achieved for waste generation, there are some first positive signs of an increasing relative delinking for waste generation and robust landfill diversion, and varying evidence of a significant role of the EU waste policies implemented in the late 1990s and early 2000s. Our evidence suggests that if while landfill diversion is currently associated to a delinking partly explained by EU policies, waste prevention must be the next objective of waste regulation efforts.     

A role for public procurement in system innovation: the transformation of the Greater Manchester (UK) waste system

The transformation of socio-technical systems to more sustainable states is more policy induced than market driven. Reflecting this, the potential for governments to direct system transformation has been widely debated. However, this debate concentrates on supply side policies and under analyses the potential for public buyers to steer system innovation. This paper draws from ideas on system innovation, transition management and public procurement to explore how a major public buyer was able to do just this. The paper describes the transformation of the Greater Manchester (UK) waste system from a relatively simple landfill model to a highly complex, multi-technology solution of intensive recycling, composting and energy production. The paper draws three main conclusions: (1) it is possible to orchestrate system innovation through public procurement in certain circumstances; (2) this involves developing the required interdependencies between technologies, institutions and practices; (3) system transformation can be orchestrated from within the incumbent regime.     

Markov chain modeling of the global technological lifetime of copper

Markov chain modeling is applied to the global anthropogenic copper cycle for the year 2000. The lifetime of copper varies from product to product and region to region, as well as through time. Assumptions of average lifetimes are therefore subject to a high degree of uncertainty. A large state transition table is created that encompasses the life-cycle stages of copper (mining, smelting, refining, fabrication, use, waste management, scrap, and final disposal), five end-uses (buildings, transportation, consumer products, electrical equipment, and machinery) in eight world regions, including trade at every stage. The system requires closure by mass balance, so all possible routes of copper trade and recycling are considered. Transitions between each pair of states are calculated using previous material flow analysis data. The main result is that an atom of copper is used 1.9 times by human society before it enters final disposal. Scaling by the lifetime of copper in each life-cycle stage in each region gives a total average technological lifetime of copper of 60 years. A sensitivity analysis is applied to the model in order to test the robustness of the results. Several scenarios are also considered: increasing the recycling rate in each region to 70%, applying European or North American in-use lifetimes to all regions, and increasing the share of the world copper cathode and scrap markets taken in by Asia to 50%. Several limitations of the Markov chain approach are discussed, as are the further research opportunities it affords.     

Forcing Firms to Think About the Future: Economic Incentives and the Fate of Hazardous Waste

What is the cost of off-site hazardous waste disposal? In addition to paying for disposal fees and shipments costs, generators of hazardous waste can potentially be held liable for the cost of cleanup if the waste disposal site contaminates the environment after closure or abandonment and thus falls under the federal or state Superfund legislation. This paper empirically examines the sensitivity of individual hazardous waste generators to these categories of costs, exploiting the variation across states in factors influencing disposal costs, and in the structure of the liability imposed on waste generators under certain circumstances by state laws. We fit nested logit models to predict the waste management method (incineration or landfill disposal) and the state of destination for shipments of halogenated solvent waste used for metal cleaning in manufacturing and reported in the Toxic Release Inventory in 1988–1990. Waste generators respond to transportation costs and to proxies for current disposal costs. Generators also find the concurrent presence of strict and joint-and-several liability a deterrent, but this deterrent effect does not vary with the wealth of the firm or the volume of the waste shipped.     

A LANDFILL CLOSURE AND HOUSING VALUES

The United States disposes roughly 60% of the municipal solid waste it generates each year in solid waste disposal facilities, commonly known as landfills. Hedonic pricing studies have estimated the external costs of landfills on neighboring housing markets, but the literature is silent on what happens to property values after the landfill closes. Original housing price data collected both before and after a landfill closure are used to estimate how a landfill closure affects neighboring property values. Results of both a hedonic pricing model and a repeat-sales estimator are used in the analysis. ( JEL H42, H72, Q51, Q53, R21)     

资源价值流转下火电企业环保投资决策研究

火电企业因其巨大的节能减排潜力,在绿色发展与可持续发展方面备受关注,而传统的成本核算方法已难以满足企业循环经济改造需求。引入资源价值流理论,通过识别企业内部废弃物成本和外部环境损害价值,寻找企业循环经济改造的关键节点,并建立“经济—环境”二维体系,结合层次分析法和灰色局势决策模型构建环保投资决策模型。在此基础上,以CS火电厂为例,实施资源价值流分析并针对“锅炉燃烧中心”和“燃煤运输中心”提出3个环保投资备选方案,利用环保投资决策模型优选最佳环保投资方案。基于资源价值流分析的环保投资决策,可为火电企业实现经济与环境效益双赢提供有效支持。     

Gains and losses from transfers of solid waste

Municipal solid waste is often transferred to landfills in other regions or states. While municipalities frequently resist imports, the interpretations of the Interstate Commerce Clause require that landfills accept waste regardless of its origin. This may require importers to act in ways that are not in their own best interest. The analysis of this paper suggests that importers benefit from trade when their landfill is so large that it is not exhausted at the end of the planning period. However, when landfill capacity is sufficiently scarce, importing waste is not welfare enhancing. Such municipalities have considerable motivation to try to de facto exclude waste from outside the municipality.     

Evaluating Unit-Based Pricing of Residential Solid Waste: A Panel Data Analysis

Municipalities introduced unit-based pricing (UBP) with the aim of achieving a decrease in household waste generation and for the replacement of unsorted waste with recycling. Although many studies have shown that UBP has a short-run effect on recycling, few works have tackled the long-run effect on waste generation and recycling. By using panel data for 665 Japanese cities over 8 years, we examine the long-run effect of UBP on waste generation and recycling. The estimation results in waste generation suggest that there is a rebound effect, though a small one. We confirm that the effect of UBP on recycling sustains for the long run. We also find that the short- and long-run responses to an economic incentive for recycling activities differ with income groups. Recycling among the high-income group has not been promoted by implementation of UBP, but people in that group are willing to participate in recycling without an economic incentive. In contrast, recycling activity within the low-income group is strongly motivated by UBP for many years.     

循环经济的“3R”原则在城郊生活垃圾领域的运用

循环经济＂3R＂原则包括减量化、再利用和再循环。＂3R＂是循环经济的操作原则,强调要在物质流动的全过程中控制资源消耗和污染产生。随着经济发展和城市化的推进,城市郊区垃圾产生量也在逐年增加,因此必须使循环经济的＂3R＂原则在城郊生活垃圾领域得到充分运用。通过贯彻减物质化第一位的原则,引入市场机制和经济手段,使生活垃圾的收运、处置体系走上循环经济的高端化之路。     

“互联网+再生资源回收”模式推进机制的三方演化博弈研究

随着垃圾分类政策逐步在全国范围内推行,一些企业将互联网技术与垃圾分类回收相结合,提出了“互联网+再生资源回收”的新模式,但目前该模式仍处于探索阶段,想要在全国范围内推广还有诸多问题需要解决。论文基于演化博弈论理论,构建“互联网+再生资源回收”模式下城市生活垃圾分类回收的演化博弈模型,对博弈三方行为决策进行分析以及仿真验证,研究结果表明:政府的监督成本、政府提供给垃圾分类企业和居民的财政补贴、政府对垃圾分类企业的行政处罚力度以及居民参与垃圾分类的直接收益等因素是制约三方演化博弈能否达到理想均衡状态的关键,进一步分析模型成因,并针对结果提出几点建议。