LOS ANGELES--(BUSINESS WIRE)--Today, Los Angeles Tourism & Convention Board (Los Angeles Tourism) is proud to join our colleagues across the country in celebrating Global Meetings Industry Day (GMID). One of the largest "unseen" drivers of our local economy, professional meetings and conventions represent one of the region's biggest contributors to employment, local business sales, and tax revenues that provide essential services to all Angelenos. "Meetings and conventions generate a remark