Claim: Gabor–Granger method, developed in the 1960s by Clive Granger and André Gabor, is a variant of monadic price testing used in surveys wherein one must find the highest price that respondents are willing to pay.
Evidence: It was developed in the 1960s by Clive Granger and André Gabor. It is a variant of monadic price testing. To use the Gabor-Granger method in a survey, one must find the highest price that respondents are willing to pay.