BUSINESS CALENDAR

* Michael McGuire of Affinity Bank will speak about “America’s Emerging Neighborhood Markets” at the Ventura Chamber of Commerce’s monthly luncheon at 11:30 a.m. today at the Four Points Sheraton, 1050 Schooner Drive. The cost is $20 for members and $25 for visitors. For more information, call 648-2875.

* The Thousand Oaks-Westlake Village Regional Chamber of Commerce’s monthly “Chamber After Five” mixer will be held from 5:30 to 7 p.m. Wednesday at the Westlake Village Marketplace at Lindero Canyon and Thousand Oaks Boulevard. The cost is $2 for chamber members and $5 for nonmembers. Call 370-0035 for more information.