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arXiv has added in Economics section to their archive.

arXiv is internationally acknowledged as a pioneering open access preprint repository. The Economics arXiv will start with a single subject area of Econometrics, but according to demand we expect to add more subject areas in the future, and the Econometrics subject can also be subdivided further. The reason to start with Econometrics is that a significant number of Econometricians already regularly submit their work to the statistics domain of the arXiv. We hope that creating an explicit Econometrics domain will result in a majority of Econometricians to submit their work to the arXiv, so that most of the new papers in the field are disseminated in that way. If that goal is achieved, then regularly checking the Econometrics arXiv will become an efficient and easy way to stay current on the Econometrics literature. We initially want to focus on methodological papers, in agreement with the following description:
• econ.EM (econometrics): Econometric Theory, Micro-Econometrics, Macro-Econometrics, Empirical Content of Economic Relations discovered via New Methods, Methodological Aspects of the Application of Statistical Inference to Economic Data
The arXiv allows to upload a new version of a paper anytime, while also maintaining all previous versions. This helps clarify academic priority of ideas, while at the same time always making the latest version of papers available.