Add Tom's two lectures on asset pricing, risk attitudes, and robustness (#823)

* Tom's March 5 edits

* updates

* updates

* updates

* Tom's March 6 edits of the Backus lecture lecture

* update Tom's two lectures

---------

Co-authored-by: thomassargent30 <ts43@nyu.edu>

Author: HumphreyYang

lectures/_static/lecture_specific/risk_aversion_or_mistaken_beliefs/eggs_backus.png

@@ -3005,3 +3005,39 @@ @article{ChowLevitan1969
   month={aug},
   publisher={Oxford University Press}
 }
+
+@article{hansen2020twisted,
+  author   = {Hansen, Lars Peter and Sz\H{o}ke, Bal\'{a}zs and Han, Lloyd S. and Sargent, Thomas J.},
+  title    = {{Twisted probabilities, uncertainty, and prices}},
+  journal  = {Journal of Econometrics},
+  year     = 2020,
+  volume   = {216},
+  number   = {1},
+  pages    = {151--174}
+}
+
+@unpublished{piazzesi2015trend,
+  author = {Piazzesi, Monika and Salomao, Juliana and Schneider, Martin},
+  title  = {{Trend and Cycle in Bond Premia}},
+  year   = 2015,
+  note   = {Working Paper, Stanford University}
+}
+
+@article{szoke2022estimating,
+  author  = {Sz\H{o}ke, Bal\'{a}zs},
+  title   = {{Estimating robustness}},
+  journal = {Journal of Economic Theory},
+  year    = 2022,
+  volume  = {199},
+  pages   = {105225}
+}
+
+@article{AngPiazzesi2003,
+  author  = {Ang, Andrew and Piazzesi, Monika},
+  title   = {{A no-arbitrage vector autoregression of term structure dynamics with macroeconomic and latent variables}},
+  journal = {Journal of Monetary Economics},
+  year    = 2003,
+  volume  = {50},
+  number  = {4},
+  pages   = {745--787}
+}

lectures/_static/lecture_specific/risk_aversion_or_mistaken_beliefs/eggs_backus2.png

@@ -130,6 +130,8 @@ parts:
   - file: ge_arrow
   - file: harrison_kreps
   - file: morris_learn
+  - file: risk_aversion_or_mistaken_beliefs
+  - file: affine_risk_prices
 - caption: Data and Empirics
   numbered: true
   chapters: