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stata中变量内的数据相减 attach_img 爱问频道 abigail_ww 2018-3-29 6 13785 刘沙沙啊 2024-1-5 16:06:37
专利引用 attachment 经管文库(原现金交易版) 天道纵韬 2020-10-8 6 2012 可乐不加冰2 2021-4-14 20:31:22
上市公司绿色专利授权量2001-2019 attach_img 经管文库(原现金交易版) 2012162210 2020-10-12 2 1275 ceu327792 2020-10-27 16:56:25
数据驱动的数字化转型的思维框架 数字化企业管理 时光永痕 2020-10-23 0 1243 时光永痕 2020-10-23 19:46:10
悬赏 求助:GMM分析结果一直比FE和OLS回归的结果都低,什么原因呢? - [悬赏 10 个论坛币] attach_img Stata专版 张玉星solo 2018-12-25 4 3072 阿轮嗷嗷嗷 2020-6-10 21:45:49
悬赏 求助一篇文献What is a Patent Worth? Evidence from the U.S. Patent “Lottery” - [!reward_solved!] 案例库 red123star 2019-12-8 1 791 yangxionger 2019-12-8 19:18:21
A great wall of patents attachment 宏观经济学 asdfgab123 2018-5-23 1 1200 asdfgab123 2019-10-11 16:48:47
求问如何计算新出现观测数? Stata专版 18401622392 2019-5-8 1 1602 ritaing 2019-5-8 22:56:46
悬赏 Patents as collateral for securitization - [!reward_solved!] attachment 求助成功区 为在心中 2018-7-6 1 789 giresse 2018-7-6 09:36:31
专利统计. OECD Patent Statistics Manual attachment 经济社会统计专版 happy_287422301 2018-4-11 3 1243 happy_287422301 2018-4-12 11:06:47
後白光LED專利時代 中國LED廠能改變賽局? 休闲灌水 ucom 2018-3-15 0 628 ucom 2018-3-15 10:33:10
面板随机前沿分析,为什么显示数据找不到 attach_img 灌水吧 clara5354 2017-3-30 1 839 俊杰jj312 2017-8-18 22:48:12
悬赏 The Role of R&D and Patent Signaling - [!reward_solved!] 求助成功区 默默ivy 2017-7-26 2 1099 pany198634 2017-7-27 13:36:21
專利流氓活動升溫 半導體業者小心接招 休闲灌水 ucom 2017-4-10 0 1192 ucom 2017-4-10 23:39:24
悬赏 Small Firms, Big Patents? Estimating Patent Value - [!reward_solved!] attachment 求助成功区 littlefox18 2017-3-13 1 926 auirzxp 2017-3-13 16:23:38
悬赏 Patenting and the early-stage high-technology investor: - [!reward_solved!] attachment 求助成功区 littlefox18 2017-3-13 1 943 auirzxp 2017-3-13 16:19:04
悬赏 Meet the Patents: Fostering Innovation and Reducing - [!reward_solved!] attachment 求助成功区 littlefox18 2017-3-13 1 762 auirzxp 2017-3-13 16:17:19
悬赏 How to create commercial value from patents: the role of patent management. - [!reward_solved!] attachment 求助成功区 littlefox18 2017-3-13 1 1196 auirzxp 2017-3-13 16:15:40
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