A New Keynesian model with heterogeneous expectations_百度学术 http://xueshu.baidu.com/s?wd=paperuri:(afd18734c89be65e521b4252a7a08268)&filter=sc_long_sign&sc_ks_para=q%3DA+New+Keynesian+model+with+heterogeneous+expectations&tn=SE_baiduxueshu_c1gjeupa&ie=utf-8