OMathR/anno/3_oecd.tex

U_{n(h c r), 1}=\underbrace{\alpha+A_{c}+A_r+f\left(\boldsymbol{x}_{nh} ; \theta\right)}_{Q_{n h c r}\left(\boldsymbol{x}_{n h} ; A_c, A_r, \theta\right)}+\varepsilon_{n h c}=Q_{n h c r}\left(\boldsymbol{x}_{n h} ; A_c, A_r, \theta\right)+\varepsilon_{n h c}