Received: 19 January 2018
Accepted: 11 June 2018
First Online: 23 July 2018
Change Date: 6 February 2019
Change Type: Correction
Change Details: In the version of this Article originally published, there was a data entry error in Table 1 for a single variable, eligibility of non-renewable resources in a renewable portfolio standard. This affected the descriptive statistics in Table 1 and Fig. 4 and the regression results and efficiency variable in Table 2. It also affects parts of the text, Table 3 and the Supplementary Information. These corrections have now been made.
: The authors declare no competing interests.
: This research involved human subjects. It was approved with exempt status by the University of Utah, under protocol number 00063847. In accordance with this protocol, informed consent was provided by all study participants