Unanswered Questions
1,842 questions with no upvoted or accepted answers
14
votes
0answers
324 views
How do I use the Malliavin calculus to solve for the optimal trading strategy in the classic Merton problem?
How do I use the Malliavin calculus to solve for the optimal trading strategy in the classic Merton problem?
In Duffie's book "Dynamic Asset Pricing," he outlines the "Martingale method" of solving ...
13
votes
0answers
293 views
Can I refine the set of equilibria in a signaling game to the sender-optimal outcome?
Main question: I've been reading about communication games a lot, and I'm wondering if there are good criteria to select between two separating-ish equilibria. I think of a separating equilibria as ...
11
votes
0answers
176 views
How accurate is duality?
In economic theory we know that with the use of some calculus, Hotellings Lemma and Sheppards lemma we can derive a given firms supply function and in term its Profit function.
With data of a given ...
9
votes
0answers
293 views
Calculus and Indifference Curves in an Urban Economics Example
I am reading the paper 'The Structure of Urban Equilibria' by Jan Brueckner.
It uses a monocentric city model, where all consumers earn income $y$ at the centre of the city. They buy $q$ housing for ...
9
votes
0answers
189 views
Local and Central Wage Bargaining: What Is the Difference?
Consider the following setting:
Profit maximizing firms with production functions $\Pi(w,L)$, where $w$ is the wage and $L$ is employment.
Unions who want to maximize the expected utility of their ...
9
votes
0answers
230 views
Show that $W_t - \int_0^t \xi_s ds$ is forward-measure-Brownian
Definitions and stuff:
Consider a filtered probability space $(\Omega, \mathscr F, \{\mathscr F_t\}_{t \in [0,T]}, \mathbb P)$ where
$$T > 0$$
$$\mathbb P = \tilde{\mathbb P}$$
This is risk-...
9
votes
0answers
474 views
How do I compute the relative risk aversion of Epstein-Zin preferences?
$$
\newcommand{\E}{\mathbb{E}}
$$
Preface
This question is related to this one about the elasticity of intertemporal substitution and this one about the definition of absolute risk aversion. (It's ...
9
votes
0answers
364 views
How can I test for autoregressive residual terms in a fixed effects panel Poisson model?
I have panel data for counts of new firms in different regions for six years. I am estimating a static poisson regression with multiplicative fixed effects$^*$; I have also tried to estimate a dynamic ...
9
votes
0answers
579 views
Modern theory of integrability of demand?
I am aware of Hurwickz Uzawa work in integability, neatly summarized by Border http://people.hss.caltech.edu/~kcb/Notes/Demand4-Integrability.pdf
I am wondering if there is any modern treatment of the ...
8
votes
0answers
39 views
Competition and welfare - empirical evidence
Consider the following claims:
less competitive markets deliver worse outcomes for consumers,
less competitive markets deliver lower social welfare,
less competitive markets deliver higher prices/...
8
votes
0answers
147 views
Proofs in the Appendix A of Sannikov (2007)
I have a few questions about the proofs in Appendix A of Sannikov (2007), Games with Imperfectly Observable Actions in Continuous Time.
In lemma 4, when he shows the Lipschitz continuity of $H_a(w,\...
8
votes
0answers
243 views
LEN-Model equivalency
Starting position is a principal-agent-model with incomplete information (moral hazard) and the following properties:
Agent utility: $u(z)=-e^{(-r_az)}$
Principal utility: $B(z)=-e^{(-r_pz)}$
Effort ...
7
votes
0answers
48 views
Rothschild-Stiglitz working paper?
I recently rediscovered Rothschild and Stiglitz's classic paper, "Equilibrium in Competitive Insurance Markets".
In footnote 7, they refer to an earlier version of their paper for details on the ...
7
votes
1answer
142 views
Labour markets and supply-side policies: too much stress put on the WS push factors?
In reading several macro textbooks, it seems that most of the supply-side policies tend to be focused on the labour supply side (wage setting curve), instead on the firm/labour demand side(price ...
7
votes
1answer
184 views
eBay economics - total revenue impact from expanding ecosystem by 1 seller
While I think my question is straight forward, I'm guessing the answer to it is anything but. Thanks in advance for any insight you may be able to offer, even if it's just a directional assist. Here'...
