[house_auction] Add VCG comparison section and exercises

lectures/_static/quant-econ.bib

@@ -1594,6 +1594,58 @@ @article{acemoglu2002political
   publisher = {Wiley Online Library}
 }
 
+@article{ShapleyShubik1971,
+  author  = {Shapley, Lloyd S. and Shubik, Martin},
+  title   = {The Assignment Game {I}: The Core},
+  journal = {International Journal of Game Theory},
+  volume  = {1},
+  number  = {1},
+  pages   = {111--130},
+  year    = {1971}
+}
+
+@article{CrawfordKnoer1981,
+  author  = {Crawford, Vincent P. and Knoer, Elsie Marie},
+  title   = {Job Matching with Heterogeneous Firms and Workers},
+  journal = {Econometrica},
+  volume  = {49},
+  number  = {2},
+  pages   = {437--450},
+  year    = {1981}
+}
+
+@article{DemangeGaleSotomayor1986,
+  author  = {Demange, Gabrielle and Gale, David and Sotomayor, Marilda},
+  title   = {Multi-Item Auctions},
+  journal = {Journal of Political Economy},
+  volume  = {94},
+  number  = {4},
+  pages   = {863--872},
+  year    = {1986}
+}
+
+@article{Leonard1983,
+  author  = {Leonard, Herman B.},
+  title   = {Elicitation of Honest Preferences for the Assignment of
+             Individuals to Positions},
+  journal = {Journal of Political Economy},
+  volume  = {91},
+  number  = {3},
+  pages   = {461--479},
+  year    = {1983}
+}
+
+@article{EdelmanOstrovskySchwarz2007,
+  author  = {Edelman, Benjamin and Ostrovsky, Michael and Schwarz, Michael},
+  title   = {Internet Advertising and the Generalized Second-Price Auction:
+             Selling Billions of Dollars Worth of Keywords},
+  journal = {American Economic Review},
+  volume  = {97},
+  number  = {1},
+  pages   = {242--259},
+  year    = {2007}
+}
+
 @article{rozenfeld2011area,
   title   = {The area and population of cities: New insights from a different
              perspective on cities},