中国房地产及住宅研究会副会长顾云昌认为，经济适用房建设进度主要取决于三个因素：
B-organization I-organization I-organization I-organization I-organization I-organization I-organization I-organization I-organization I-organization I-organization B-position I-position I-position B-name I-name I-name O O O O O O O O O O O O O O O O O O O O O O