Please use highlights of the attached videos in answering the following question

Please use highlights of the attached videos in answering the following questions:
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In 2015, while the US economy was not in recession, JPMorgan Chase announced it was laying off 5,000 employees, averaging two tellers per branch.
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If these tellers were unneeded due to technological change what type of unemployment would they represent?
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It also decided to exit certain lines of business, including student loans.
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Other institutions will make student loans.
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What type of unemployment would these employees face?
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In June 2008 JPMorgan Chase laid off hundreds od employees in its mortgage division.
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What type of unemployment did these employees face?
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Describe the phases of the business cycle.
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How do we measure unemployment?
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Explain the different types of unemployment.
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What are efficiency wages?
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https://www.youtube.com/watch?v=9i6vf5Wz6nY&t=44s
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https://www.youtube.com/watch?v=ki4cmpJhFXk
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https://www.youtube.com/watch?v=ENHyev3IqHs
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https://www.youtube.com/watch?v=mWwXmH-n5Bo