近两年,随着住宅地产的调控收紧,商业地产在投资主导的经济模式下顺理成章地成为楼市投资的替代品,呈现爆发式增长,达到历史新高。某些商业地产指数似乎也印证了市场的繁荣。比如2012年第一季度,北京甲级写字楼平均空置率下降到4%的历史新低,而平均租金却同比攀升 In the past two years, with the tightening of control of residential real estate, commercial real estate has become a real substitute for property investment under the investment-led economic model, showing explosive growth and reaching a record high. Some commercial real estate indices also seem to confirm the market’s prosperity. For example, in the first quarter of 2012, the average vacancy rate of Grade A office buildings in Beijing dropped to a historical low of 4%, while the average rent increased year-on-year