A deficit in the palladium market that has driven prices of the autocatalyst metal to record highs will widen dramatically this year, specialist materials company Johnson Matthey said in a report on Wednesday. The company, a leading autocatalyst manufacturer, said the shortfall in the roughly ten-million-ounce-a-year palladium market narrowed in 2018 to 29 000 ounces from 787 000 ounces in 2017, its widest in three years.