Underlying data to "Comparing the Recommendations of Buyers of Energy-Efficient and Inefficient Vacuum Cleaners".

This dataset belongs to publication; "Comparing the Recommendations of Buyers of Energy-Efficient and Inefficient Vacuum Cleaners" In MDPI.com Anonymised Net Promotor Score (NPS) data from 902 European consumers from Philips vacuum cleaners including the reasons for NPS. Used to test the difference between those who bought an energy efficient version or an inefficient version. The data also contains the specification of the bought vacuum cleaners (kg, input power Watt, suction Watt, Price in Euro). The data is obtained in 2010 when the vacuum cleaners in the EU where not limited in energy consumption yet. Customers where categorized in Green-Low Energy, who bought their vacuum cleaner for reasons of their environmental friendliness, the low energy buyers (who did so for other reasons) and the high energy buyers. Please read the article at MPDI for detailed descriptions.<b> </b>

本数据集隶属于发表于MDPI平台的论文《对比节能与非节能吸尘器购买者的推荐反馈》（Comparing the Recommendations of Buyers of Energy-Efficient and Inefficient Vacuum Cleaners）。数据集包含来自902位购买Philips吸尘器的欧洲消费者的匿名化净推荐值（Net Promotor Score, NPS）数据，以及对应净推荐值的归因理由。本数据集旨在对比购买节能款与非节能款吸尘器的消费者群体间的差异。此外，数据集还涵盖所购吸尘器的规格参数，包括重量（千克）、输入功率（瓦特）、吸力功率（瓦特）及欧元售价。该数据采集于2010年，彼时欧盟尚未对吸尘器的能耗设置限制。受访消费者被划分为三类：绿色低能耗（Green-Low Energy）群体（因产品环保属性选购吸尘器）、普通低能耗群体（因非能耗相关因素选择低能耗产品）以及高能耗产品购买者。如需获取详细描述，请参阅MDPI平台刊载的该论文原文。