例によってまだ読んでないけど、
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https://t.co/IMtiJ1ogyK Macroeconomic impact of electric power outage: simulation results from a CGE modelling experiment for Hungary: Klár…
— NEP-CMP (@RePEc_NEP_CMP) 2017年5月8日
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ぱっと見たところ、どこかで見たようなnotation...。
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いや、私の本がreferenceにないことに苦情を申し立てるつもりはなく、むしろ逆。世の中のCGEモデラーの潜在意識に、本人はそうとは気づかずに、根付きつつあることにニンマリしているのである(気色悪い?)。
めざすは「よ」である。
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数学記号として平仮名が使われる時代が既に訪れていたのか... pic.twitter.com/1MENyIDSwC
— ウニ (@unununum_1) 2017年5月4日
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ところで数値計算ソフトはMatlabクローンのOCTAVEの由(Major and Drucker (2015, 脚注5))。
For the simulations to be calculated it is necessary to solve the model equations. As there are actually a large number of nonlinear equations to be solved, usually it is done numerically. In our case we programmed the model equations in OCTAVE and used the built-in solver (‘fsolve’) for this purpose. This function uses a version of Newton methods to solve the system of nonlinear equations. By substituting equations into each other, the OCTAVE code reduced the dimensionality of the problem to 2*n+3, where n is the number of sectors (in this application it is 62). This meant that fsolve had to find the root of a system of 127
nonlinear equations.
リンク
- Major, K., Drucker, L. F. (2015) "Macroeconomic impact of electric power outage: simulation results from a CGE modelling experiment for Hungary," mimeo.
- Hosoe, N., Gasawa, K., Hashimoto, H. (2010) Textbook of Computable General Equilibrium Modelling: Programming and Simulations, Palgrave Macmillan.
- GNU Octave
