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The main purpose of this note is two-fold: (i) Correcting an error in the two-part tariff licensing contract, and (ii) Altering one of the main results following the two-part tariff analysis in Mukherjee and Mukherjee (2013). This also strengthens the primary conclusion of Mukherjee and Mukherjee (2013).


NOTICE: this is the author’s version of a work that was accepted for publication in Economics Letters. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Economics Letters, volume 183, in 2019.

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