The paper can be downloaded from <a href="https://www.aeaweb.org/conference/2018/preliminary/paper/ShD4d8GY" rel="nofollow">https://www.aeaweb.org/conference/2018/preliminary/paper/ShD...</a> . From the abstract:<p>"We find robust evidence that exposure to teacher collective bargaining laws worsens the future labor market outcomes of men: in the first 10 years after passage of a duty-to-bargain law, male earnings decline by $2,134 (or 3.93%) per year and hours worked decrease by 0.42 hours per week. The earnings estimates for men indicate that teacher collective bargaining reduces earnings by $213.8 billion in the US annually."