People report much larger willingness to accept (WTA) than willingness to pay (WTP) under a broad range of circumstances. This dissertation tries to answer the question when people will report this gap, how large the difference between the two answers will be and what reasons lie behind this...

One of the first questions that has to be answered in the survey design process is "How many subjects should be interviewed?" The answer can have significant implications for the cost of project preparation, since in Latin America and the Caribbean costs per interview can range from US$20 to...

One of the first questions that has to be answered in the survey design process is "How many subjects should be interviewed?" The answer can have significant implications for the cost of project preparation, since in Latin America and the Caribbean costs per interview can range from US$20 to...