File:US Unemployment 1890-2009.gif
此为最大尺寸。
US_Unemployment_1890-2009.gif （796 × 416像素，文件大小：24 KB，MIME类型：image/gif）
摘要
| 描述 |
English: selfmade image of U.S. Unemployment rate from 1890-2009 |
| 日期 | |
| 来源 | 自己的作品 by Peace01234 Complete raw data are on Peace01234. 1930-2009 data are from Bureau of Labor Statistics, Employment status of the civilian noninstitutional population, 1940 to date ftp://ftp.bls.gov/pub/special.requests/lf/aat1.txt, retrieved March 6, 2009 and [1] retrieved February 12, 2010. Data prior to 1948 are for persons age 14 and over. Data beginning in 1948 are for persons age 16 and over. See also "Historical Comparability" under the Household Data section of the Explanatory Notes at http://www.bls.gov/cps/eetech_methods.pdf. 1890-1930 data are from Christina Romer (1986). "Spurious Volatility in Historical Unemployment Data", The Journal of Political Economy, 94(1): 1-37. 1930-1940 data are from Robert M. Coen (1973)(Image of extracted relevant table.). "Labor Force and Unemployment in the 1920's and 1930's: A Re-Examination Based on Postwar Experience", The Review of Economics and Statistics, 55(1): 46-55. Unemployment data was only surveyed once each decade until 1940 when yearly surveys were begun. The yearly data estimates before 1940 are based on the decade surveys combined with other relevant surveys that were collected during those years. The methods are described in detail by Coen and Romer. |
| 作者 | Peace01234 |
| 授权 (二次使用本文件) |
Multi-license with CC-BY-SA-3.0 and GFDL |
| 其他版本 |
Derivative works of this file: US Unemployment 1890-2011.gif US_Unemployment_1890-2008.gif |
许可协议
我，本作品著作权人，特此采用以下许可协议发表本作品：
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我，本作品著作权人，释出本作品至公有领域。这适用于全世界。 在一些国家这可能不合法；如果是这样的话，那么： 我无条件地授予任何人以任何目的使用本作品的权利，除非这些条件是法律规定所必需的。 |
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2010年2月12日 (五) 20:50 | | 796 × 416（24 KB） | Peace01234 | Cropped excess blank space around perimeter of image |
| 2010年2月12日 (五) 20:19 |  | 669 × 339（19 KB） | Peace01234 | {{Information |Description={{en|1=selfmade image of U.S. Unemployment rate from 1890-2009}} |Source={{own}} |Author=Peace01234 |Date=2010-02-12 |Permission= |other_versions=US_Unemployment_1890-2008.gif }} Peace01234 (talk) Complete |
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