[1] In 2007 Erkal published Optimal Sharing Strategies in Dynamic Games of Research and Development with Deborah Minehart of the United States Department of Justice.

They analysed the effect of China's one-child policy using 400 subjects, and their conclusion was that it had created a generation of children who lacked social and economic qualities that were important for success.

[4] The paper noted that the current method of finding people to fulfil leadership roles was for candidates to "opt-in" to show their interest.

[4] During the COVID-19 pandemic in Australia, Erkal was one of 265 economists who wrote an open letter to encourage the government to prioritise health before the economy.

[5] Erkal was elected to be a fellow of the Academy of the Social Sciences in Australia together with 36 others including David Kalisch, Catharine Coleborne and Lyn Parker in 2021.