From the introduction: "The purpose of this paper is to demonstrate that a number of languages require downstairs (ds) intransitivity for causative clause union (CsU). In addition I offer for testing the hypothesis that ds intransitivity is a universal constraint in CsU. In order to accomplish my initial purpose and at the same time give preliminary testing to the proposed hypothesis, I will compare the predictions made by the received version of CsU with those made by my own version plus the proposed ds intransitivity constraint for a number of languages."
Frantz, Donald G.
"On downstairs transitivity in causative clause unions,"
Work Papers of the Summer Institute of Linguistics, University of North Dakota Session: Vol. 21, Article 3.
Available at: https://commons.und.edu/sil-work-papers/vol21/iss1/3