In this post and the next, we’re concluding our review of the Court’s unanimity rate in civil cases set against changes in the Court’s party alignment.

Despite changes in four of the Court’s seven seats during these eleven years, the party alignment of the Court remained the same throughout – four Democrats, three Republicans.  As

This week, we’re tracking the Supreme Court’s unanimity rate in civil cases, matched against the evolving party alignment of the Justices.  Last time, we reviewed the data for the 1990s.  Today, we’re reviewing the data for the years 2001 through 2010.

With Democrat Thomas Kilbride having replaced James Heiple in the final days of 2000,

Today, we’re reviewing the contents of our database, which includes every case decided by the Illinois Supreme Court since January 17, 1990.  For every case, we’ve captured the following data points:

Official Reporter Citation

  1. E. Reporter Citation

Docket Number

Case Name

Petitioner

Petitioner Governmental Entity (Y/N)

Respondent Governmental Entity (Y/N)

Source of Appellate Jurisdiction

Originating

Last time, we began our analysis by addressing the competing theories of judicial behavior.  Formalism, the oldest theory, teaches that judicial decision making can be explained and predicted based upon the facts, the applicable law and precedent and judicial deliberations – and nothing more.  But if formalism explains all of judicial decision making, then many

Our latest repost:

We begin our analysis by addressing the foundation of the entire body of data analytic scholarship on appellate judging: competing theories of judicial decision making.

The oldest theory by far is generally known in the literature as “formalism.”  This is the theory we all learned in law school, according to which every

Our short series of contextual reposts continues:

Although the state Supreme Courts have not attracted anything near the level of study from academics engaged in empirical legal studies that the U.S. Supreme Courts and Federal Circuits have a number of different researchers have attempted to compare how influential the various state courts are for the