Data Supporting 'Evaluating energy efficiency in G20 nations: A data envelopment analysis approach'

Column headers indicate the country name, year, and the respective variable names and values. In total, the dataset contains 438 entries across 6 columns.Minor estimation values exist for a few countries in specific years due to unavailability in the original sources. All numeric data were double-checked for consistency and plausibility, and outliers were assessed using standard statistical methods.The dataset file is named "G20_Energy_Efficiency_DEA_Dataset", with a size of approximately 20 KB.

It can be opened using any spreadsheet software or statistical tools that support comma-separated values (CSV) format.In addition to the raw and processed input-output data used for the DEA model, this repository also includes a supplementary file containing the results of the DEA analysis. This file presents the technical efficiency scores for each G20 country by year, generated applying DEA with the Banker, Charnes, and Cooper (BCC) model and window analysis to evaluate EE trends over time.

The analysis establishes the Total Factor Energy Efficiency (TFEE) index. The results are provided in tabular format "G20_Energy_Efficiency_DEA_TFEE", with columns indicating the country, year, efficiency score, and relevant DEA parameters (CSV) format. These results were obtained using R.This dataset is intended to be reused by researchers interested in energy efficiency analysis, benchmarking using DEA, or comparative policy assessments among G20 economies.