These files include data and estimation code for:

Boehmke, Frederick J. 2009. “Policy Emulation or Policy Convergence? Potential Ambiguities 
	in the Dyadic Event History Approach to State Policy Emulation.” The Journal of 
	Politics 71 (3): 1125-1140.

Compiled on June 09, 2010 by Frederick J. Boehmke (frederick-boehmke@uiowa.edu).


INCLUDED:

  1 Microsoft Excel data sets:

   boehmke2009jop.csv 			Listing of state pain management legislation 
					and state variables (monadic data). 

  1 Stata data sets:

   boehmke2009jop.dta 			Dyadic data set of policy emulations by year. 

  3 Stata do files:

   boehmke2008sppq-mkdata.do 		Creates the Stata data set described above.
   boehmke2008sppq-analyze.do 		Runs the models reported in Table 2 in the paper.
   nbrs-code-dyad.do			Creates indicator for state contiguity.

  1 README file:

   boehmke2009jop-README.txt		Describes the included data and files.

  1 pdf file:

   boehmke2009jop.pdf			A preprint copy of the article.


NOTES:

1. The included data set, boehmke2009jop.csv, includes data on state pain management
	policy and characteristics of state medical boards obtained from Sarah Imhof. 
	It also includes data on state political and demographic variables compiled
	by the author from public sources. 

2. Variable manipulations are performed in boehmke2009jop-mkdata.do, which creates
   	the data set boehmke2009jop.dta used for the analysis. You do not need to run 
	this file since the data sets are already supplied. See Note 4 below if you do 
	plan to run this file.

3. The tables and models are estimated by boehmke2009jop-analyze.do.

4. Note that you will need to keep nbrs-code-dyads.ado in the same directory as 
	boehmke2009jop-analyze.do if you recreate the data since the latter uses this 
	program to create the indicator for whether the two states in a dyad are 
	continguous.

5. The programs are written for Stata version 9 or above, though they may run
   	in previous versions.


VARIABLES:

Here are descriptions for all the variables used in the analysis. See the paper
for additional details. Some variables created in the mkdata file but not used
in the analysis are included, but not described here. Most of these are measured 
for state 01 and state 02 at the dyadic level as well as the difference between the
two values. 

emul_net		Did state 01 emulate state 02? 
emul_opp_net		Did state 01 have the opportunity to emulate state 02? 
mblegal 		Medical Board Legal Counsel
mbautho 		Medical Board Authority
mbnonmd			Medical Board Non-MD Members
ideology 		Ideology (EWM)
rpcpinc 		Personal Income (Real - 2002)
nbr_lag_sum 		Number of components adopted by state 02
nbrs_lag_any 		Number of contiguous states that have adopted any component
prov_tot_02 		Number of components adopted by state 02.
fsmbgde 		Indicator for post-1998 for the release of the Federation of State 
			Medical Boards (FSMB) model guidelines for state PMP in July, 1998.
time  			Time since 1989






