The impact of LAWA on the family labour supply among farm households
利用2000-2010年美国社区调查数据，采用双重差分模型，发现《亚利桑那州合法工人法案》使农户家庭劳动力选择农业职业的概率提高3-5.5个百分点，非西班牙裔农场影响达11个百分点。
This article examines the impact of the Legal Arizona Workers Act (LAWA) on the farm occupation decisions of family labour in agricultural households. This question is studied at the individual level using the difference-in-differences model with the American Community Survey data from 2000 to 2010. We find that LAWA has significantly increased the probability of farm family labourers choosing agricultural occupations by 3–5.5 per cent and the impact is 11 per cent for non-Hispanic farms. This study suggests that stringent immigration laws could change the patterns of family labour use among US farm households.