Articles relating to the economy of California, the largest in the United States, boasting a $3.2 trillion gross state product (GSP) as of 2019. If California were a sovereign nation (2019), it would rank as the world's fifth largest economy, ahead of India and behind Germany. Additionally, California's Silicon Valley is home to some of the world's most valuable technology companies, including Apple, Alphabet Inc., and Facebook. In total, over 10% of Fortune 1000 companies were based in California in 2018, the most of any state.

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