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Finance describes the management, creation and study of money, banking, credit, investments, assets and liabilities that make up financial systems, as well as the study of those financial instruments.

2 votes
1 answer
72 views

Budget-feasible set in a portfolio choice problem

I am going through Duffie's Dynamic Asset Pricing book, and already ran into something that confused me on the third page. First, some definitions. Let $\{1, \cdots, S\}$ be a finite set of states, $D …
Wittgenstein's Poker's user avatar
2 votes
0 answers
54 views

Complete markets and convenience yields

I have been reading some papers on the safety/liquidity of US government debt and got a bit perplexed by the assumptions made in some of those papers. For example, this paper by Mehrotra and Sergeyev …
Wittgenstein's Poker's user avatar
2 votes
0 answers
57 views

Habit formation ala Constantinides (1990)

Consider the following problem, from Constantinides (1990). \begin{align} V(W_0, x_0) \equiv \max_{c, \alpha} \mathrm{E}_0 \int_0^\infty e^{-\rho s}\gamma^{-1}[c(s) - x(s)]^\gamma \mathrm{d}s, \end{al …
Wittgenstein's Poker's user avatar
1 vote
0 answers
42 views

Flow budget constraint in a paper by Garleanu and Panageas

I am reading this paper and got confused by Equation (6) in said paper. Suppose there is an investor that can trade in riskless bonds that pay interest rate $r_t$, and holds a market portfolio with v …
Wittgenstein's Poker's user avatar