Matching EU ETS Accounts to Historical Parent Companies. A Technical Note.

Abstract

This note describes how Operator Holding Accounts (OHA) and Person Holding Accounts (PHA) from the European Union Emissions Trading System (EU ETS) were mapped to their respective parent companies. Its purpose is to provide users of our account-to-firm matching with detailed guidance on the construction and use of the dataset. Our goal is fully and systematically to link EU ETS accounts with their respective parent companies. Our work is based on information provided by Bureau van Dijk’s Orbis database. We consider the full set of OHAs available in 2013. We consider the set of PHAs that performed transactions under the EU ETS during the period 2005-2007. We focus on the ownership situation during the period 2005-2007 for all accounts. We provide a combined variable capturing the parent company for the vast majority of EU ETS accounts from both the OHA and PHA groups of accounts during EU ETS Phase 1. Additionally, we provide disaggregated ownership information for each of the years 2005-2007. The information in this dataset provides users with the flexibility to easily connect to the appropriate Bureau van Dijk databases to obtain additional company data.

Keywords: EU ETS, EUTL, firm, first phase, operator holding account, ownership, Orbis database, person holding account