Kojima, Masami; Bacon, Robert; Zhou, Xin - 2012
-stage Heckman model to examine the factors influencing the decision to use liquefied petroleum gas (stage 1) and, among users, the … quantity consumed per person (stage 2). In the first stage, liquefied petroleum gas selection in all six countries increased … connection increased, and engagement in agriculture and increasing household size decreased, liquefied petroleum gas selection in …