Benefit Transfer Equivalence Tests with Non-normal Distributions

Equivalence testing reverses traditional null and alternative hypotheses—welfare estimates are assumed different unless tests demonstrate that the difference is smaller than a specified tolerance limit. Within benefit transfer, researchers have universally used the “two one-sided t-test” (TOST) equivalence test, an approach that is invalid for non-normal welfare distributions. This paper proposes an alternative based on the difference between independent empirical distributions, denoted the “two one-sided convolutions” (TOSC) test. The TOSC permits valid inference for non-normal distributions. Empirical assessments show large divergences between TOST and TOSC p-values when distributions are non-normal—demonstrating the likelihood of erroneous inference under the TOST.     

The Role of Undertakings in Regulatory Decision-Making

The Australian Competition and Consumer Commission (ACCC) has powers under the Trade Practices Act 1974 (Cwlth) to accept undertakings from industry participants interested in taking actions, such as mergers, that may potentially be anticompetitive. This paper analyses the role of undertakings, focusing on horizontal mergers. We demonstrate that undertakings can provide an imperfectly in-formed regulator with a credible signal of the positive social benefits of a proposed merger. In particular, if the merged parties undertake not to reduce their output following the merger, then the merger will only be proposed if it results in net social benefits. We discuss the practical issues of implementing a behavioural undertaking such as a minimum quantity commitment, and argue that these are no less difficult than other regulatory activities currently pursued by the ACCC.     

Cultivating the liberally educated mind through a signature program

In this article, the authors describe the Miller Upton Programs launched by the Beloit College Department of Economics in 2008. The programs aim to advance student understanding of the nature and causes of wealth and well-being. After describing the programs’ core elements, the authors discuss ways in which they leverage economic discourse as a means to advance liberal learning. They argue that programs of this kind advance liberal learning by cultivating skills required to engage the great questions of human flourishing, by fostering development of students’ economic imagination and by enhancing students’ ability to engage in genuine intellectual discovery. Details on the history and resource commitments for various program aspects are provided, allowing readers to identify program elements appropriate for replication at their home institutions.