@misc{miscbe8b294c, title = {Nonparametric and semiparametric regressions:: an empirical investigation of engel’s law in the context of Brazil}, author = {Almeida, Alexandre Nunes and Azzoni, Carlos Roberto and Chen, Tao}, year = {2023}, doi = {10.1007/9789819949021}, publisher = {Springer}, journal = {Applied econometric analysis using cross section and panel data} }