结果:找到“Gravity”相关内容89个,排序为按回复时间降序,搜索更多相关帖子请点击“高级
高级国际贸易学:新贸易理论,距离与贸易引力模型:Distance and Gravity
4 个回复 - 2703 次查看 高级国际贸易学:新贸易理论,距离与贸易引力模型:Distance and Gravity 高级国际贸易学:新贸易理论,距离与贸易引力模型:Distance and Gravity[/backcolor] 1. 贸易引力模型,gravity model.pdf 2.新贸易 ...2020-6-2 21:29 - Tiger-like - 现金交易版
贸易引力模型,Gravity equation 导师给我们的学习资料
2 个回复 - 2476 次查看 贸易引力模型,Gravity equation 导师给我们的学习资料 01a theoretical foundation for the gravity equation.pdf 02gravity with gravitas a solution to the border puzzle.pdf 03the generalized gravity ...2020-5-5 09:27 - Lotus_ss - 现金交易版
引力模型预测贸易趋势:导师为我推荐的参考资料、我所收集的数据、我的毕业论文等
8 个回复 - 2072 次查看 应用引力模型预测贸易趋势:导师为我推荐的参考资料、我所收集的数据、我的毕业论文等整理汇总 International trade gravity model,equation application 1. International trade,technological innovation a ...2020-1-3 21:29 - Mujahida - 现金交易版
Distorted Gravity: The Intensive and Extensive Margins of International Trade
5 个回复 - 1469 次查看 【作者(必填)】Chaney, T 【文题(必填)】Distorted Gravity: The Intensive and Extensive Margins of International Trade [J]American Economic Review 【年份(必填)】2008 【全文链接或数据库名称(选填 ...2017-2-7 19:47 - connorkong - 求助成功区
Application of Improved Gravity Metho
0 个回复 - 1370 次查看 the center of gravity method 欢迎讨论2022-5-19 00:02 - michaelwan651 - 校园活动区
100论坛币求书:The Gravity Model in International Trade
5 个回复 - 1159 次查看 【作者(必填)】y Peter A. G. van Bergeijk and Steven Brakman 【文题(必填)】 The Gravity Model in International Trade: Advances and Applications 【年份(必填)】 June 2010 【全文链接或数据库名称( ...2015-3-13 20:14 - liaoqiumin - 求助成功区
对引力 (gravity) 模型之 Stata 操作有兴趣者,可参考。
5 个回复 - 4174 次查看 The trade effects of anti-dumping duties: Firm-level evidence from China. European Economic ReviewVolume 122, February 2020, 103367 https://www.sciencedirect.com/science/article/pii/S00142921193022 ...2020-3-22 11:16 - 黃河泉 - Stata专版
Changes pattern in the population and economic gravity centers since the Reform
4 个回复 - 421 次查看 Since the Reform and Opening up, the regional development gaps have become increasingly prominent with the rapid development of China’s economy and society. The gaps among the East, Center and West h ...2021-12-7 08:49 - lianglongwu - 区域经济学
Gravity and Heterogeneous Trade Cost Elasticities
1 个回复 - 582 次查看 【作者(必填)】Chen, Natalie; Novy, Dennis 【文题(必填)】Gravity and Heterogeneous Trade Cost Elasticities 【年份(必填)】2021 【全文链接或数据库名称(选填)】经济政策研究中心 (cepr.org)2021-10-29 09:36 - 我是工作狂2009 - 求助成功区
Universal Gravity
1 个回复 - 394 次查看 【作者(必填)】Treb Allen Dartmouth College and National Bureau of Economic Research Costas Arkolakis Yale University and National Bureau of Economic Research Yuta Takahashi Hitotsubashi Unive ...2021-10-8 17:17 - mxd608885 - 求助成功区
"引力 (gravity) 模型"的工具变量估计
5 个回复 - 1633 次查看 上传一篇 working paper: Instrumental-variable estimation of gravity equations. 而 Stata 指令如压缩档:。2020-9-11 16:24 - 黃河泉 - Stata专版
引力 (gravity) 模型之 Stata code.
4 个回复 - 2252 次查看 分享一篇 (虽然我自己不太做此方面研究) 有关"引力 (gravity) 模型"之 Stata code (原文是在 https://www.sciencedirect.com/science/article/pii/S0014292120301380,由于版权问题,我无法上传全文)。2020-9-9 17:07 - 黃河泉 - Stata专版
A Theoretical Foundation for the Gravity Equation
5 个回复 - 1466 次查看 【作者(必填)】Anderson, James E. 【文题(必填)】A Theoretical Foundation for the Gravity Equation 【年份(必填)】1979 【全文链接或数据库名称(选填)】未知 【作者(必填)】Bergstrand, Jeffrey H ...2013-8-2 09:31 - huolei521 - 求助成功区
Gravity models for airline passenger volume prediction
1 个回复 - 326 次查看 【作者(必填)】 【文题(必填)】 Gravity models for airline passenger volume prediction 【年份(必填)】 【全文链接或数据库名称(选填)】https://www.sciencedirect.com/science/article/abs/pii/S0969699 ...2020-4-8 18:14 - ticket1988 - 求助成功区
Abstract: In a new theory called Dynamic Theory of Gravity, the cosmological d
5 个回复 - 2371 次查看 Abstract: In a new theory called Dynamic Theory of Gravity, the cosmological distance to an object and also its gravitational potential can be calculated. We first measure its redshift on the s ...2015-4-10 23:13 - 15379257183 - 跨学科讨论区
The Log of Gravity
3 个回复 - 969 次查看 【作者(必填)】 J. M. C. Santos Silva & Silvana Tenreyro 【文题(必填)】The Log of Gravity 【年份(必填)】2006 【全文链接或数据库名称(选填)】http://www.mitpressjournals.org/doi/abs/10.1162/rest.88.4 ...2013-11-16 00:31 - feiye2006 - 求助成功区
Existence and stability of city-size distribution in the gravity and logit model
2 个回复 - 1301 次查看 【作者(必填)】Takatoshi Tabuchi 【文题(必填)】Existence and stability of city-size distribution in the gravity and logit models 【年份(必填)】Environment and Planning A, 1986, vol. 18, issue 10, ...2014-7-20 19:35 - 1050500042 - 求助成功区
The log of gravity 谢谢大噶
2 个回复 - 408 次查看 【作者(必填)】 Santos-Silva, J. and Tenreyro, S. 【文题(必填)】 The log of gravity 【年份(必填)】 2006 【全文链接或数据库名称(选填)】2019-5-8 21:19 - maturing - 求助成功区
cepii gravity data
0 个回复 - 1293 次查看 从cepii官网得到,需要的可以下载2020-3-9 13:22 - lyk2011yjc - 数据交流中心
Universal Gravity
2 个回复 - 766 次查看 【作者(必填)】Treb Allen Dartmouth College and National Bureau of Economic Research Costas Arkolakis Yale University and National Bureau of Economic Research Yuta Takahashi Hitotsubashi Unive ...2020-2-15 13:31 - wuyu0405 - 求助成功区
gravity1112_2019-12-09 09:11:15_【学习笔记】
2 个回复 - 262 次查看 2019-12-9 09:11 - gravity1112 - Forum
gravity1112_2019-11-29 16:46:37_【学习笔记】
3 个回复 - 396 次查看 2019-11-29 16:46 - gravity1112 - Forum
gravity1112_2019-11-28 09:09:36_【学习笔记】
1 个回复 - 214 次查看 2019-11-28 09:09 - gravity1112 - Forum
gravity1112_2019-11-27 09:03:06_【学习笔记】
0 个回复 - 187 次查看 2019-11-27 09:03 - gravity1112 - Forum
gravity1112_2019-11-26 16:26:52_【学习笔记】
1 个回复 - 443 次查看 2019-11-26 16:26 - gravity1112 - Forum
求助 这篇文章的中文版Determinants of Bilateral Trade :Does Gravity Work in a Neoclassical
6 个回复 - 2670 次查看 Determinants of Bilateral Trade Does Gravity Work in a Neoclassical World?Alan V . Dear dorff2009-4-25 12:44 - angelte - 世界经济与国际贸易
引力方程(gravity equation)计算距离的软件?
6 个回复 - 4810 次查看 引力方程(gravity equation),需要计算各地,比如说两国首都的距离,通常使用什么软件??2010-3-30 22:52 - peyzf - 世界经济与国际贸易
Spatial Autocorrelation and Spatial Interaction Gravity Models
2 个回复 - 656 次查看 【作者(必填)】 [*]Daniel A. Griffith [*]Jean H. P. Paelinck 【文题(必填)】Spatial Autocorrelation and Spatial Interaction Gravity Models 【年份(必填)】2018 【全文链接或数据库名称(选填)】h ...2018-5-10 23:06 - salinasu - 求助成功区
The Space of Gravity: Spatially Filtered Estimation of a Gravity Model for Bilat
2 个回复 - 578 次查看 【作者(必填)】 [*]Roberto PatuelliEmail autho[/backcolor] [*]Gert-Jan M. Linders [*]Rodolfo Metulini [*]Daniel A. Griffith 【文题(必填)】The Space of Gravity: Spatially Filtered Estimation of ...2018-5-10 23:08 - salinasu - 求助成功区
The Gravity Equation in International Trade: An Explanation+麻烦把Supplemental
8 个回复 - 1275 次查看 【作者(必填)】 Thomas Chaney 【文题(必填)】 The Gravity Equation in International Trade: An Explanation 【年份(必填)】 2018 【全文链接或数据库名称(选填)】Journal of political economy Volume 12 ...2018-5-27 22:09 - yanwenshou - 求助成功区
求JPE发表论文The Gravity Equation in International Trade: An Explanation
1 个回复 - 646 次查看 【作者(必填)】Thomas Chaney 【文题(必填)】The Gravity Equation in International Trade: An Explanation 【年份(必填)】2018 【全文链接或数据库名称(选填)】http://www.journals.uchicago.edu/doi/pdfpl ...2018-2-20 12:10 - 飞天小鼠 - 求助成功区
gravity model求助
0 个回复 - 1397 次查看 在面板数据中的gravity model,有的文献可以用OLS和PPML求出每个时间点上的distance的effects,请问是怎么做到的? 文献可参考“Estimating Trade Policy Effects with Structural Gravity” 中的p352017-11-13 19:49 - gin_01 - Stata专版
Trade determinants and potential of Syria: using a gravity model ‘with an estim
1 个回复 - 405 次查看 【作者(必填)】 Zaki Mehchy[/backcolor],Rabie Nasser[/backcolor] &Marc Schiffbauer[/backcolor] 【文题(必填)】 Trade determinants and potential of Syria: using a gravity model ‘with an estimation of ...2017-10-26 21:51 - 念桥 - 求助成功区
Using gravity models for the evaluation of new university site locations: A case
1 个回复 - 418 次查看 【作者(必填)】 GiuseppeBrunoGennaroImprota 【文题(必填)】 Using gravity models for the evaluation of new university site locations: A case study 【年份(必填)】 Computers & Operations ResearchVolu ...2017-10-3 09:38 - qlb061 - 求助成功区
The Gravity Model and Trade Efficiency: A Stochastic Frontier Analysis of Easter
5 个回复 - 1209 次查看 【作者(必填)】 【文题(必填)】 The Gravity Model and Trade Efficiency: A Stochastic Frontier Analysis of Eastern E uropean Countries' Potential Trade 【年份(必填)】 2014 【全文链接或数据库名称(选 ...2017-9-20 22:13 - 念桥 - 求助成功区
更新!Gravity model 引力(重力)模型的40多篇论文!
36 个回复 - 13239 次查看 这个模型的理论导出和证明已经固定下来, 近10几年来在国际贸易和国际金融的实证研究中被广泛应用。 如果是第一次写国际贸易或国际金融的实证论文的话, 用这个模型应该是万无一失。 不过个人认为他在国际贸易中 ...2009-12-28 23:37 - choukoei - 世界经济与国际贸易
【独家发布】The Gravity of Knowledge
4 个回复 - 983 次查看 The Gravity of Knowledge Wolfgang Keller & Stephen Ross Yeaple, 2013."The Gravity of Knowledge,"American Economic Review,American Economic Association, vol. 103(4), pages 1414-44, June. Abstract ...2013-6-25 12:32 - 夸克之一 - 经管书评
A pendulum gravity model of outward FDI and export
1 个回复 - 1453 次查看 The paper proposes a pendulum gravity model of outward FDI and export. Outward FDI and export can be complementary or substitute, depending on the development stages of outward FDI. The development o ...2017-1-20 23:32 - xuehe - Gauss专版
Gravity model estimation: fixed effects vs. random intercept Poisson pseudo
9 个回复 - 1212 次查看 【作者(必填)】 S. Prehn B. Brümmer & T. Glauben 【文题(必填)】 Gravity model estimation: fixed effects vs. random intercept Poisson pseudo-maximum likelihood 【年份(必填)】 2016 【全文链接或数据 ...2016-5-23 11:47 - feiyufans - 求助成功区
执行引力方程(gravity equation)的最新文献
7 个回复 - 5945 次查看 引力方程(gravity equation)是国际贸易的实证研究中最流行的经验型模型,没有之一。 实际执行起引力方程来并不简单,因为贸易数据通常有两个特点:异方差(不同国家的贸易量有不同方差)和自我选择性误差(出口与否 ...2015-1-12 10:53 - bonapartexiong - 世界经济与国际贸易
Gravity equations:
2 个回复 - 1424 次查看 【作者(必填)】Remco C.J. Zwinkels, Sjoerd Beugelsdijk 【文题(必填)】Gravity equations: Workhorse or Trojan horse in explaining trade and FDI patterns across time and space? 【年份(必填)】2010 ...2013-1-14 11:46 - huolei521 - 求助成功区
the gravity model and trade efficiency:(已解决,谢谢)
3 个回复 - 1359 次查看 【作者(必填)】G Ravishankar, MM Stack 【文题(必填)】The Gravity Model and Trade Efficiency: A Stochastic Frontier Analysis of Eastern European Countries' Potential Trade 【年份(必填)】The World Ec ...2015-7-6 09:31 - lang20052001 - 求助成功区
The impact of economic integration on FDI and exports: a gravity approach
2 个回复 - 840 次查看 【作者(必填)】Di Mauro F. 【文题(必填)】The impact of economic integration on FDI and exports: a gravity approach 【年份(必填)】2000 【全文链接或数据库名称(选填)】https://wen.lu/scholar?hl=z ...2014-12-22 11:03 - 慕绣如 - 求助成功区
30论坛币求助NOVY的International Trade without CES: Estimating Translog Gravity
7 个回复 - 835 次查看 【作者(必填)】Dennis Novy[/backcolor] 【文题(必填)】International Trade without CES: Estimating Translog Gravity 【年份(必填)】September 2012[/backcolor] 【全文链接或数据库名称(选填)】www.cep ...2015-3-15 16:27 - liaoqiumin - 求助成功区
在经济管理中gravity effect是什么意思?
2 个回复 - 1990 次查看 国际贸易,国际商务内容,句子是这样的,we follow Lendle et al.(2012) who study gravity effect in online cross-border trade in goods ,useing a proprietary eBay datebase 阿里嘎多~2015-1-16 14:06 - ghm23 - 世界经济与国际贸易
NBER - Gravity and Extended Gravity: Using Moment Inequalities to Estimate a Mod
1 个回复 - 1283 次查看 Exporting firms continuously change export destinations. We present reduced-form evidence indicating firms are more likely to export to countries that are geographically close to their previous destin ...2014-12-9 13:33 - ryangryang - 世界经济与国际贸易
are regional trade agreements benefical?:static and dynamic panel gravity models
3 个回复 - 787 次查看 【作者(必填)】 [*] Inmaculada Martínez-Zarzosoa, b, [*]Nowak-Lehmann D. Felicitasa, [*]Nicholas Horsewoodc 【文题(必填)】are regional trade agreements benefical?:static and dynamic panel gra ...2014-12-7 09:38 - lang20052001 - 求助成功区
【独家发布】GRAVITY CHAINS: ESTIMATING BILATERAL TRADE FLOWS WHEN PARTS AND COMPONENTS
0 个回复 - 996 次查看 GRAVITY CHAINS: ESTIMATING BILATERAL TRADE FLOWS WHEN PARTS AND COMPONENTS TRADE IS IMPORTANT According to traditional gravity model theory----we can get that when parts and components trade is impor ...2014-9-11 12:46 - yanwenshou - 休闲灌水
求助:The Gravity Model in International Trade:Advances and Applications
3 个回复 - 1448 次查看 如题,谁有这本书The Gravity Model in International Trade:Advances and Applications 的电子版?2013-7-24 15:59 - lovebao - 悬赏大厅
请教gravity model
3 个回复 - 3357 次查看 有哪位高手能告知一下gravity model是什么模型啊?这个模型是用来做什么的?2011-7-28 13:44 - hongyong890529 - EViews专版
【地心引力.Gravity】2013美国最新科幻巨片 DVD-MP4/522M双语字幕
0 个回复 - 891 次查看 ◎译  名 地心引力 / 引力边缘(港) / 地球引力 / 重力 ◎片  名 Gravity ◎年  代 2013 ◎国  家 美国 ◎类  别 科幻/剧情 ◎语  言 英语 ◎字  幕 中英双语字幕 ◎IMDB评分 (7.6/10 f ...2014-1-11 17:36 - Mista2012 - 休闲灌水
[欧美][科幻][地心引力.Gravity][DVD-MKV/1.2G][双语字幕]
0 个回复 - 2178 次查看 [欧美][科幻][地心引力.Gravity][DVD-MKV/1.2G][双语字幕] ◎译  名 地心引力 / 引力边缘(港) / 地球引力 / 重力 ◎片  名 Gravity ◎年  代 2013 ◎国  家 美国 ◎类  别 科幻/剧情 ◎语  ...2013-12-29 21:02 - 7win - 休闲灌水
最新美国科幻惊悚片【地心引力Gravity】【中字/MKV】
9 个回复 - 891 次查看 种子下载地址 :http://www.yunupload.net/f/7bf0f0e6504d6f09.html 下载操作: 1.点击“普通单线下载”按钮 2.输入左边图片上验证码数字 3.点击“普通单线下载”按钮 4.完成下载 ...2013-12-10 14:43 - ggdd66 - 休闲灌水
求Capturing zero-trade values in gravity equations of trade:an analysis of prote
1 个回复 - 759 次查看 【作者】George Philippidis1, Helena Resano-Ezcaray2, Ana I. Sanjuán-López3,* 【文题】Capturing zero-trade values in gravity equations of trade: an analysis of protectionism in agro-food sectors ...2013-12-10 16:33 - dearaning - 求助成功区
Trade-FDI Linkages in a Simultaneous Equations System of Gravity Models
2 个回复 - 775 次查看 【作者(必填)】Dr. Timo Mitze 【文题(必填)】Trade-FDI Linkages in a Simultaneous Equations System of Gravity Models for German Regional Data 【年份(必填)】2012 【全文链接或数据库名称(选填) ...2013-8-3 10:40 - huolei521 - 求助成功区
gravity and gravitas: a solution to the border puzzle
1 个回复 - 875 次查看 【作者(必填)】Anderson, J.E and Van Wincoop 【文题(必填)】gravity and gravitas: a solution to the border puzzle 【年份(必填)】2003 【全文链接或数据库名称(选填)】未知2013-7-2 22:51 - huolei521 - 求助成功区
求AER发表文献The Gravity of Knowledge
3 个回复 - 852 次查看 【作者(必填)】Wolfgang Keller and Stephen Ross Yeaple 【文题(必填)】The Gravity of Knowledge 【年份(必填)】2013 【全文链接或数据库名称(选填)】http://www.aeaweb.org/atypon.php?return_to=/doi ...2013-6-16 08:56 - 飞天小鼠 - 求助成功区
the gravity equation in international trade in services
2 个回复 - 1508 次查看 【作者(必填)】Kimura,F. and Lee, H. Hoon 【文题(必填)】the gravity equation in international trade in services 【年份(必填)】2004 【全文链接或数据库名称(选填)】未知2013-2-14 17:52 - huolei521 - 求助成功区
Competing-destinations gravity model
1 个回复 - 863 次查看 【作者(必填)】•FelipDe Mello-Sampayoa 【文题(必填)】Competing-destinations gravity model: an application to the geographic distribution of FDI 【年份(必填)】2009 【全文链接或数据库名称 ...2012-12-25 13:31 - huolei521 - 求助成功区
Does China receive more regional FDI than gravity would suggest?
3 个回复 - 662 次查看 【作者(必填)】Walid Hejazi 【文题(必填)】Does China receive more regional FDI than gravity would suggest? 【年份(必填)】2009 【全文链接或数据库名称(选填)】science direct2012-12-17 09:26 - huolei521 - 求助成功区
Bayesian inference for the gravity model
3 个回复 - 801 次查看 题目:Bayesian inference for the gravity model作者:Priya Ranjan1,Justin L. Tobias2,*出处:Journal of Applied Eonometrics,Volume 22, Issue 4, pages 817–838, June/July 20072012-2-24 10:56 - jt - 悬赏大厅
[感谢]An Econometric View on the Estimation of Gravity Models and the Calculation
4 个回复 - 2273 次查看 论文篇数:1题目:An Econometric View on the Estimation of Gravity Models and the Calculation of Trade Potentials, 杂志:The World Economy, 2001. or WIFO Working Papers, 141/2001  [此贴子已经 ...2007-10-30 22:57 - liuxw0114 - 求助成功区
求助成功 : Probabilistic formulations for gravity models and equilibriu
3 个回复 - 788 次查看 【作者(必填)】B. Sahariah, A. Borthakur 【文题(必填)】3. Demography : Probabilistic formulations for gravity models and equilibrium distribution of population 【年份(必填)】Stochastic Processe ...2011-12-12 19:53 - 区域经济爱好者 - 求助成功区
求助成功:About the confusion between the center of gravity and Weber's optimum
1 个回复 - 784 次查看 【作者(必填)】Alain Schärlig 【文题(必填)】About the confusion between the center of gravity and Weber's optimum 【年份(必填)】Regional and Urban Economics, Volume 3, Issue 4, November 19 ...2011-12-12 20:17 - 区域经济爱好者 - 求助成功区
求助成功Evaluating spread of invaders from gravity scores – A way of using grav
1 个回复 - 770 次查看 【作者(必填)】Johannes Järemo, 【文题(必填)】Evaluating spread of invaders from gravity scores – A way of using gravity models in ecology 【年份(必填)】mathematical Biosciences,Volume 22 ...2011-12-12 19:49 - 区域经济爱好者 - 求助成功区
A GRAVITY STUDY OF THE PROPOSED CHINA-ASEAN FREE TRADE AREA
5 个回复 - 1637 次查看 【题 名】: A GRAVITY STUDY OF THE PROPOSED CHINA-ASEAN FREE TRADE AREA 【作 者】:Benjamin Roberts【期刊、会议、单位名称】:The International Trade Journal【年, 卷(期), 起止页 ...2011-11-29 21:24 - zouhaojk - 求助成功区
求教gravity 模型研究汇率
4 个回复 - 1404 次查看 求教:想写使用gravity模型来分析汇率和国际贸易之间的联系,但看了这个模型后一头雾水,是否可以给些提示。我看的是最基础的线性模型,下载了Eview软件。2011-7-28 13:34 - jinxiao63 - 爱问频道
空间引力问题的经典文献:A Theoretical Foundation for the Gravity Equation
1 个回复 - 2809 次查看 空间引力问题的经典文献:A Theoretical Foundation for the Gravity Equation2011-6-12 01:09 - hedongwei1983 - 区域经济学
ABOUT EQUATION of GRAVITY
3 个回复 - 2670 次查看 请问在FEENSTRA 的ADVANCED INTERNATIONAL TRADE一书的第五章, 关于重力模型的的具体推导,即由以下公式 MAX CES utility function(5.22) subje ...2005-11-1 07:39 - robertli - 世界经济与国际贸易
2_Gravity and Spatial Interaction Models
0 个回复 - 1531 次查看 经典区域经济外文文献之二2010-11-10 21:23 - hshqdili - 区域经济学
异质性gravity
2 个回复 - 1824 次查看 引力模型的最新进展2010-9-2 21:45 - huangbing2008 - 世界经济与国际贸易
Distorted Gravity
0 个回复 - 1514 次查看 Distorted Gravity: The Intensive and Extensive Margins of International TradeFull Text AvailableChaney, Thomas; American Economic Review, September 2008, v. 98, iss. 4, pp. 1707-21Database: EconLit wi ...2009-11-15 10:09 - vicky_bj2008 - 文献求助专区
Controlling for Heterogeneity in Gravity Models of Trade and Integration
0 个回复 - 2122 次查看 Controlling for Heterogeneity in Gravity Models of Trade and Integration I-Hui Cheng and Howard J. Wall Working Paper 1999-010D http://www.pinggu.org/bbs/viewthread.php?tid=39 ...2009-10-7 22:14 - wusi126 - 国民经济管理
gravity modle 求解释
1 个回复 - 2347 次查看 最近读书,看到 gravity modle 是经济学的模型,但是不知道是什么内容,也没有查到,烦请明白人解释.谢谢2009-4-11 10:47 - refugee - 世界经济与国际贸易
The Gravity model and prediction of *
0 个回复 - 2472 次查看 [此贴子已经被作者于2008-9-25 23:39:46编辑过]2008-9-25 23:36 - qtech - 世界经济与国际贸易