Which airline should undertake a large emission reduction allocation proportion under the "carbon neutral growth from 2020" strategy? An empirical study with 27 global airlines.

The "Carbon Neutral Growth from 2020″ strategy (CNG2020 strategy) has predicted the total emission reduction amount but has not arranged the special emission reduction proportion for an individual airline. In this paper, we build a DEA model to calculate the emission reduction allocation proportion and explore the impacts of a different carbon price. We select Number of Employees, Fleet Size, and Aviation Kerosene as then inputs, and set Total Revenue as the output. Then we apply BP neural network to predict the data from 2021 to 2023 based on the actual data of 27 global airlines from 2008 to 2018. We discuss the allocation proportions when the price is 8 dollars/ton, when the price is 14 dollars/ton and when the price is 20 dollars/ton. We have some findings: 1. Skyteam will have the largest average reduction allocation proportion in 2021 and 2023, while Oneworld will have the largest allocation proportion in 2022.2. The largest average ERAP in 2021 and 2023 is from Delta Air Lines, and the largest average ERAP in 2022 is from Air France-KLM. [ABSTRACT FROM AUTHOR]