Bilitewski Bernd
Technische Universität Dresden, Department of Waste Management, Pratzschwitzer Strasse 15, 01796 Pirna, Germany.
Waste Manag. 2008 Dec;28(12):2760-6. doi: 10.1016/j.wasman.2008.03.032. Epub 2008 Oct 1.
This paper deals with the environmentally important issue regarding how best to motivate citizens to reduce their individual waste production. The paper discusses the pros and cons of the various financial incentives incorporated into the waste charging mechanism, pay-as-you-throw (PAYT). Pay-as-you-throw breaks with the tradition of paying for waste services through general blanket taxes or levies in the form of flat rates in that households are required to pay individually adjusted fees in the same way as water and electricity bills are calculated on an individual consumption basis. This difference is achieved through the interplay of three principal components which mark the technical implementation of PAYT: identification as a vehicle to attain accountability, measurement of the generated waste and/or corresponding services, and unit pricing as the basis for individual charges proportional to the extent of the obtained services. However, any motivating factor for inducing citizens to dispose of their recyclable discards and residual waste must be supported by a well developed collection infrastructure, good media information and an appropriate, transparent charging policy. Of particular importance is the use of a multi-tiered charge model, i.e., the charging of a fixed minimum fee plus certain variable components payable in respect of the service structure. The introduction of a basic charge, albeit reducing the intensity of the incentives created by the PAYT system, ensures that certain fixed costs for the provision of waste services will be covered independently from the actual waste developments and, at the same time, minimises the temptation to attempt to bypass the system. Such an arrangement for the waste charges neither contradicts the principle of pay-as-you-throw nor does it impair the waste diversion for which it is implemented. Waste statistics and figures representing the waste charging situation in Germany indicate that there is a relatively good correlation between the level of recycling and the amount of perceived financial motivation provided by PAYT. Waste stream developments in areas using such charging schemes generally suggest that the reduction goals are being achieved. Single figures on decreasing quantities of collected residual waste, however, say little about the actual efficiency of differentiated waste charging models and deliver little in the way of reasoned explanation as to why the diffusion of variable rate pricing is progressing painstakingly slowly. To evaluate the success, feasibility and problems of PAYT schemes, one needs to consider the various ways for technically implementing this approach in practice, and must take a broader look into the wide spectrum of available waste services and into more factors that influence their efficiency and acceptance. Urban structure settings assume a particular importance here as do the specific goals of social policy which, among others, are reflected in the charging mechanisms applied. Practical experience, however, shows that solutions can be found which allow most of the concerns and area specifics to be accommodated and waste streams to be influenced in the desired way. Aside from this, positive effects as to waste collection efficiency can also be achieved, which contribute towards long-term environmental improvements and countervail the incremental costs of implementing PAYT.
本文探讨了一个与环境密切相关的重要问题,即如何最有效地激励市民减少个人垃圾产生量。文章讨论了纳入垃圾收费机制“随扔随付”(PAYT)中的各种经济激励措施的利弊。“随扔随付”打破了通过一般的统一税收或固定费率形式的征税来支付垃圾处理服务费用的传统模式,因为家庭需要像水电费按个人消费量计算那样,单独支付经过调整的费用。这种差异是通过“随扔随付”技术实施的三个主要组成部分的相互作用实现的:身份识别作为实现问责制的手段、对产生的垃圾和/或相应服务进行计量,以及单位定价作为根据所获得服务程度按比例收取个人费用的基础。然而,任何促使市民处理可回收废弃物和残余垃圾的激励因素,都必须有完善的收集基础设施、良好的媒体宣传以及适当、透明的收费政策作为支撑。特别重要的是采用多层次收费模式,即收取固定的最低费用加上根据服务结构应支付的某些可变部分。引入基本费用,尽管降低了“随扔随付”系统所产生的激励强度,但确保了提供垃圾处理服务的某些固定成本能够独立于实际垃圾产生情况得到覆盖,同时将试图绕过该系统的诱惑降至最低。这样的垃圾收费安排既不违背“随扔随付”原则,也不会损害其实施所针对的垃圾转移目标。德国的垃圾统计数据和代表垃圾收费情况的数字表明,回收水平与“随扔随付”提供的经济激励程度之间存在相对良好的相关性。采用这种收费方案的地区的垃圾流发展情况总体表明正在实现减量目标。然而,关于收集到的残余垃圾量减少的单一数据,对于差异化垃圾收费模式的实际效率说明甚少,也几乎没有给出合理的解释,说明为什么可变费率定价的推广进展极其缓慢。为了评估“随扔随付”方案的成功、可行性和问题,需要考虑在实践中从技术上实施这种方法的各种方式,并且必须更全面地审视广泛的可用垃圾处理服务以及更多影响其效率和接受度的因素。城市结构设置在这里具有特别重要的意义,社会政策的具体目标也是如此,这些目标尤其体现在所应用的收费机制中。然而,实际经验表明,可以找到解决方案,既能兼顾大多数关切和地区特点,又能以期望的方式影响垃圾流。除此之外,还能实现对垃圾收集效率的积极影响,这有助于长期的环境改善,并抵消实施“随扔随付”增加的成本。