The Effects of Bracketing in Wealth Estimation
研究了财富调查中使用括号法是否会导致受访者用粗略猜测替代认真思考，从而挤出精确回答。基于健康与退休研究数据，发现人们并未普遍转向括号法，且挤出效应需达到很高水平才会使括号法适得其反。
The use of bracketing in wealth surveys is sometimes criticized on the grounds that it will encourage respondents to substitute rough guesses for careful thought. In such a manner, the use of bracketing will “crowd out” more specific answers, creating the illusion of a reduction in nonresponse. This paper examines the patterns of wealth response in the first two waves of the Health and Retirement Study. On average, people do not appear to transition to bracketing. New tests of the breakeven level of crowding‐out are suggested. Based on the explanatory power of the brackets, the degree of crowding‐out which would be necessary to make the use of bracketing counterproductive appears to be much higher than plausible.