Nearly 4 million people visited Washtenaw County in 2016, according to data collected for that year by a Michigan-based research and consulting firm. That translates into $1.1 billion dollars in total economic output and nearly 9,000 jobs. 89.1 WEMU’S Lisa Barry spoke with the marketing director for the Ann Arbor Area Convention and Visitors Bureau, Laura Berarducci , about the economic impact of tourism on the county.