Below-market property valuations and constitutional caps on tax increases are depriving Oklahoma schools, counties and cities of tens of millions of dollars in annual revenue, according to a recent data study.The data analysis shows that 52 of the state’s 77 counties would have generated an additional $192 million in property tax revenue in 2014 if their valuations had been accurate and if they could have immediately begun collecting the proper amounts.The study was prepared by the Oklahoma...