JPMorgan Global Equity Research yesterday issued its December Business Jet Monthly report, which notes that November’s used business jet inventory saw a modest decline, marking the fourth consecutive month of shrinkage in the number of active aircraft available for sale. The midsize class saw the biggest inventory decrease, while the number of available light jets remained relatively unchanged from the previous month. Some 13 percent of the jet fleet is on the market, representing a higher number than at any point before the end of 2008, leading analysts to conclude that used aircraft prices still have room for further decline. According to the report, asking prices fell a further 1.2 percent last month, the 12th straight month of decline. Overall, year-to-year asking prices are down nearly 25 percent. Based on this month’s findings, the report concludes the return of substantial new jet demand is still well into the future, and estimates worldwide deliveries of 754 jets (including VLJs) next year, 825 in 2011 and 994 in 2012.