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Political Party & Unemployment Group 5: Richard Baker, Michael Jelmini, Kenneth Morino, Cambria Price, You Ren, James Young Econ 240A Professor Llad Phillips
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Objective Why? Upcoming graduation Recent recession Recent increase in unemployment What? Is there a correlation between unemployment and presidential party affiliation? How? Time series data of national unemployment rate Bernoulli distribution of party affiliation
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Hypothesis H 0 : When a republican is in presidential office, the unemployment rate is higher than when a democrat is in office. H a : There is no correlation between the political affiliation of the president and the unemployment rate.
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Collected Data Unemployment Data from 1947-2002 - Bureau of Labor Statistics http://stats.bls.gov Presidential Party Affiliations - The White House http://www.whitehouse.gov/history/presidents
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Meet the Presidents
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Presidential Party Affiliation
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Time Series Data of Unemployment Rates
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Linear Probability Model
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Regression Results
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Linear Probability Model Analysis Problem: –LPM not constrained within 0<P(x)<1 Solution: – model with Probit!
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Model with Probit
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Probit Regression Results
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Further Analysis Is there an unemployment rate overlap due to previous presidential party affiliation? If so, how much overlap? –1 year –2 years Will these models produce a better/worse correlation?
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One Year Forward Lag BeforeAfter
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Probit Model of One Year Lag
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One Year Lag Results
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Two Year Forward Lag BeforeAfter
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Probit Model of Two Year Lag
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Two Year Lag Results
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Conclusions A significant correlation between unemployment rate and political party affiliation was discovered A stronger correlation was found when applying a one year lag, and to a lesser degree, a two year lag, on this relationship Overall, we conclude from our data that unemployment is significantly greater when a Republican president is in office when compared to a Democrat
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