This paper, "Do Newspapers Serve the State? Incumbent Party Influence on the US Press, 1869-1928" to which these Appendices apply is available at the following URL: "http://ssrn.com/abstract=2089455" http://ssrn.com/abstract=2089455

Using data from 1869-1928, we estimate the effect of party control of state elected offices on the entry, exit, circulation, and content of Republican and Democratic daily newspapers. We exploit changes over time in party control of the governorship and state legislatures in a...

Using data from 1869 to 1928, we estimate the effect of party control of state governments on the entry, exit, circulation, prices, number of pages, and content of Republican and Democratic daily newspapers. We exploit changes over time in party control of the governorship and state legislatures...

We study partisan differences in Americans' response to the COVID-19 pandemic. Political leaders and media outlets on the right and left have sent divergent messages about the severity of the crisis, which could impact the extent to which Republicans and Democrats engage in social distancing and...

We measure trends in affective polarization in nine OECD countries over the past four decades. The US experienced the largest increase in polarization over this period. Three countries experienced a smaller increase in polarization. Five countries experienced a decrease in polarization. These...

We measure trends in affective polarization in nine OECD countries over the past four decades. The US experienced the largest increase in polarization over this period. Three countries experienced a smaller increase in polarization. Five countries experienced a decrease in polarization. These...