It was not immediately clear how striking CNHI workers in Iowa would vote. A Burlington union representative might not immediately be reached for comment. CNHI declined to comment. The company increased its initial offer of an 18.5% pay rise over three years for non-commercial skilled workers, but fell short in other areas, including increasing the cost of work bonuses. health insurance that would take effect following this year, Mahdi said. “When you take into account the increase in insurance compared to wages, you lose money,” he added. The length of the CNHI strike is unusual and far exceeds the two-month average in the United States, said Robert Bruno, professor of labor and employment at the University of Illinois Urbana-Champaign. With a tightening labor market, unionized industrial workers for companies such as Boeing and Deere & Co. have gone on strike in recent years. “What we’re seeing is union members rejecting contracts at a higher rate and the end result is that they’re doing a lot better,” he said.