The office real estate market should continue to grow in 2004 and 2005, while the industrial real estate market should reach "historic" levels during the next two years, according to the Casden Real Estate Economics Forecast produced by the USC Lusk Center. The real estate business school predicts rents will rise, vacancies will fall and new office buildings will open in the next few years as demand keeps growing along with the two county region. The study predicts vacancy rates among industrial properties should fall by 10 percent by 2005 as companies move to the Inland Empire, attracted by property that is cheaper than what can be found in Los Angeles County and by Ontario International Airport.