LEGO secondary market price data

The dataset covers secondary market prices of 2,322 LEGO sets in 2015, which represent the averages of 30 most recent completed transactions on eBay, provided by brickpicker.com. There are two prices of each set depending on its condition: ‘new’ and ‘used’. We also report each set’s id, name, theme, year of release, the original primary market price, size and the number of minifigures. These data were collected from Maciorowski and Maciorowski (2015), where the original source of data is brickpicker.com, which, in turn, takes the data from eBay. Additionally, we provide monthly secondary market price data for a sub-sample of 223 sets from 8 most popular for collectors themes for the more recent period from December 2015 until April 2019. We also provide monthly price data for 2,322 sets for a shorter period, January 2018 – April 2019. These data were parsed from brickpicker.com directly and are not available there now. The data can be used for a time-series and cross-sectional analysis of LEGO returns on the secondary market. Finally, we provide LEGO chain and hedonic yearly return indices for 1987-2015, estimated in Dobrynskaya and Kishilova (2022).

本数据集涵盖2015年的2322款乐高（LEGO）套装二级市场价格，该价格取自brickpicker.com提供的eBay平台上最近30笔已完成交易的均价。每套乐高套装均按品相分为全新与二手两类价格。我们还提供各套装的编号、名称、主题、发售年份、原始一级市场售价、套装规格以及人仔数量。这些数据源自Maciorowski与Maciorowski（2015）的研究，其原始数据源为brickpicker.com，而brickpicker.com的数据则取自eBay平台。
此外，针对2015年12月至2019年4月的近期时段，我们从8个受收藏者欢迎的热门主题中抽取223款套装的子样本，提供其月度二级市场价格数据。同时，我们为全部2322款套装提供2018年1月至2019年4月这一较短时段的月度价格数据，该类数据系直接从brickpicker.com抓取所得，目前该平台已不再提供此类内容。
本数据集可用于乐高二级市场回报率的时间序列与横截面分析。最后，我们提供1987年至2015年的乐高二级市场链式回报指数与特征价格年度回报指数，该指数由Dobrynskaya与Kishilova（2022）估算得出。