search for: aspearot

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2008 Jul 21
1
Large number of dummy variables
Hello, I'm trying to run a regression predicting trade flows between importers and exporters. I wish to include both year-importer dummies and year-exporter dummies. The former includes 1378 levels, and the latter includes 1390 levels. I have roughly 100,000 total observations. When I'm using lm() to run a simple regression, it give me a "cannot allocate ___" error.