# Econometrics Software Library > econometrics software **Wikidata**: [Q110798857](https://www.wikidata.org/wiki/Q110798857) **Source**: https://4ort.xyz/entity/econometrics-software-library ## Summary Econometrics Software Library is econometrics software that is also classified as free software and proprietary software. It runs on Windows 3.0 and was created by Ramachandra Ramanathan under a GNU General Public License. The library is alternatively known by the aliases ESL, ECSLIB, and ESLWIN. ## Key Facts - It is classified as both free software, distributed under terms allowing free use, study, modification, and redistribution, and proprietary software, restricted by license as per SIC code 7372 in the Prepackaged Software industry. - It runs on Windows 3.0, the third major release of Microsoft Windows, which was initiated in 1988. - Aliases include ESL, ECSLIB, and ESLWIN, with creator Ramachandra Ramanathan. - Its license is GNU General Public License, with references dated 2022-02-02 and a source link to the gretl manual. - It is documented as an instance of econometrics software, proprietary software, and free software, with copyright status marked as copyrighted. - Operating system compatibility is listed as Windows 3.0, tied to the same source documentation. - No SEO data has been published for this entity. ## FAQs What classifications apply to Econometrics Software Library? It is simultaneously categorized as free software and proprietary software, with the proprietary class linked to the Prepackaged Software industry under SIC code 7372, while the free software status adheres to terms permitting unrestricted use, study, modification, and redistribution. On which platform does Econometrics Software Library operate? The software is specified to run on Windows 3.0, corresponding to the third major release of Microsoft Windows, which was launched in 1988. Who is the creator and what licensing information is associated? The creator is Ramachandra Ramanathan, and the library is distributed under the GNU General Public License, with license references dated 2022-02-02 and a manual link from SourceForge. What alternative names are recognized for this software? Known aliases include ESL, ECSLIB, and ESLWIN, reflecting variant identifiers used across academic and software catalog contexts. ## Why It Matters Econometrics Software Library serves as a bridge between econometric analysis and computing environments, enabling researchers to perform statistical modeling on a widely deployed historical platform. By being available as both free and proprietary software, it addresses diverse user needs around accessibility, control, and integration within legacy systems. Its operation on Windows 3.0 highlights its role in extending advanced quantitative tools to early graphical user interfaces, supporting the growth of empirical research in economics and related fields. ## Notable For - It holds dual status as both free software and proprietary software, a rare classification alignment. - It is explicitly tied to Windows 3.0, marking compatibility with a major 1988 release of Microsoft Windows. - The library is identified by multiple aliases: ESL, ECSLIB, and ESLWIN. - It is cataloged as an instance of econometrics software, proprietary software, and free software within structured knowledge sources. - Its license is recorded as GNU General Public License with direct reference documentation linked to the gretl manual. - The creator is listed as Ramachandra Ramanathan, providing clear attribution for development. ## Body ### Classification and Licensing Econometrics Software Library is documented as both free software and proprietary software, reflecting a dual licensing approach. As free software, it is distributed under terms that allow users to freely run, study, change, and distribute it and modified versions, with this status referenced under GNU General Public License details dated 2022-02-02 and linked to the gretl manual. Its proprietary software classification aligns with the Prepackaged Software industry under SIC code 7372, indicating restricted use, study, or redistribution under license terms. ### Platform and System Requirements The software is explicitly designed to run on Windows 3.0, the third major release of Microsoft Windows, which was initiated in 1988. This operating system compatibility is recorded alongside copyright status marked as copyrighted, ensuring legal protections are maintained. The linkage between the software and Windows 3.0 is supported by shared reference documentation, tying the library to a specific era of graphical computing environments. ### Identifiers and Metadata Aliases ESL, ECSLIB, and ESLWIN provide alternative naming conventions used across different catalogs and academic references. The creator, Ramachandra Ramanathan, is directly attributed to the development of the library, establishing clear authorship. These identifiers are consistently referenced within structured knowledge sources, ensuring traceability and accurate representation across databases. ### Knowledge Structure and Relationships Econometrics Software Library is formally recorded as an instance of econometrics software, while also being classified under proprietary and free software categories. These relationships are documented with specific references, including license materials and operating system constraints. The integration of copyright status and platform requirements illustrates how the entity is positioned within broader software ecosystems, balancing accessibility and proprietary control. ### Documentation and External References All properties and connections are drawn from existing structured sources, including academic records and software registries. The license information includes direct links to reference materials, such as the gretl manual, enabling verification and deeper exploration. This comprehensive documentation ensures that the entity can be reliably identified, categorized, and utilized within research and development contexts. ## References 1. Gretl: Retrospect, Design and Prospect 2. [Source](https://master.dl.sourceforge.net/project/gretl/manual/gretl-guide-a4.pdf)