lalonde               package:Matching               R Documentation

_L_a_l_o_n_d_e _D_a_t_a_s_e_t

_D_e_s_c_r_i_p_t_i_o_n:

     Dataset used by Dehejia and Wahba (1999) to evaluate propensity
     score matching.

_U_s_a_g_e:

     data(lalonde)

_F_o_r_m_a_t:

     A data frame with 445 observations on the following 12 variables.

     _a_g_e age in years.

     _e_d_u_c years of schooling.

     _b_l_a_c_k indicator variable for blacks.

     _h_i_s_p indicator variable for Hispanics.

     _m_a_r_r_i_e_d indicator variable for martial status.

     _n_o_d_e_g_r indicator variable for high school diploma.

     _r_e_7_4 real earnings in 1974.

     _r_e_7_5 real earnings in 1975.

     _r_e_7_8 real earnings in 1978.

     _u_7_4 indicator variable for earnings in 1974 being zero.

     _u_7_5 indicator variable for earnings in 1975 being zero.

     _t_r_e_a_t an indicator variable for treatment status.

_D_e_t_a_i_l_s:

     Two demos are provided which use this dataset.  The first,
     'DehejiaWahba', replicates one of the models from Dehejia and
     Wahba (1999).  The second demo, 'AbadieImbens', replicates the
     models produced by Abadie and Imbens <URL:
     http://elsa.berkeley.edu/~imbens/matlab/lalonde_exper_04feb2.m>.
     Many of these models are found to produce good balance for the
     Lalonde data.

_R_e_f_e_r_e_n_c_e_s:

     Dehejia, Rajeev and Sadek Wahba. 1999.``Causal Effects in
     Non-Experimental Studies: Re-Evaluating the Evaluation of Training
     Programs.'' _Journal of the American Statistical Association_ 94
     (448): 1053-1062.

     Lalonde, Robert. 1986.  ``Evaluating the Econometric Evaluations
     of Training Programs.''  _American Economic Review_ 76:604-620.

_S_e_e _A_l_s_o:

     Also see 'Match', 'GenMatch', 'MatchBalance', 'balanceMV',
     'balanceUV', 'ks.boot', 'GerberGreenImai'

