# Tag Info

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I would argue that indeed none of the so-called stylized facts you mentioned can be explained by classical economic theory. That there was a gross delta between the predictions of classical economic theory and empirical data was foremost found out by Benoit Mandelbrot as far back as 1963 in his seminal paper: The Variation of Certain Speculative Prices In ...

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The general effect of quantitative analysis of the markets is to enforce randomness. Suppose a strategic quant finds a predictable pattern where a stock always rises on Tuesdays. His institution will commence buying the stock every Monday, and selling on Tuesday. The trading itself pushes the stock price up on Monday and down on Tuesday (in general), so if ...

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I think there is a slight misconception into the purpose of an economic theory. The market is a complex entity to be modeled and yes, it is neither efficient nor arbitrage free but it is trading and there is a price process that corresponds to the market one. You could say that classical economic theory has failed, but I would argue the idea of a theory is ...

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Take logs of both sides, i.e. $$\log Y=\log A+ a \log K +(1-a)\log L$$ This gives: $$\Delta\log Y = \Delta\log A + a \Delta\log K +(1-a) \Delta\log L$$ Then use that $\frac{d}{dx}\log x= 1/x$, which yields $\Delta\log x=\Delta x/x$. Apply that to each log-diff above.

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IEX is an ATS. The ECN/ATS business is dominated by rampant and well known conflicts of interest. A part of the IEX value proposition from the beginning was to offer an alternative to traders who were disenfranchised by this market structure. If maker-taker rebates are part of your trading business model or if you engage in any strategy that could be deemed ...

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To evaluate the impact on your FX portfolio of an increase in LIBOR, or any other rate for that matter, you must know: Which currencies you have exposure to Which positions have a floating rate exposure and to what rate. You can then model the relationship between LIBOR and those variables. Without that information, you cannot do anything. For ...

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No. Actually "risk neutral pricing" does not make assumptions on the risk preferences of the agents. Securities are priced as if agents were risk neutral (that is to say as a straight expectation of discounted payoffs) but where probabilities of states of the world are not the true ones but they have been adjusted to reflect preferences. The math: Say ...

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Clearly the money markets are likely to freeze up in a crisis situation. They did exactly that in 2008. Specifically: A) people don't want to lend money unsecured to banks, so bank commercial paper goes below par in the market. B) understanding this , people try to liquidate money market funds containing bank cp at par, so a run develops on money market ...

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Put it simply, the interest rate depends on the forces of demand and supply of money. When the Fed buy bond, it increases the money supply into the economy. To induce the people to borrow more money bank reduces their own interest rate, otherwise, people won't have any incentives to borrow more. The interest rate is reduce to such level again equilibrium is ...

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There is not a single 'interest-rate' to reduce, there are various interest rates in play. The central bank mandate is usually to control CPI or a similar measure of inflation (e.g. Bank of England's 2% inflation target for GBP). There are various tools for them to do this, including QE and setting the central bank rate. However, at the moment, the central ...

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Good question. to make it short: same Aim, but just different ways to fullfill a goal. if you (or Lender of last resort) create(s) an exogenous shock by lowering directly rates, the cost of interbank money is de facto reduced and you expect a positive externality in real economy by providing more loans towards economic agents (companies, etc.). However with ...

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The money market fund could suffer principle loss during crisis and one of them publicly did during the crisis of 2008. I say publicly because there are funds that suffered large loss that would have had them 'break the buck' except their sponsoring organizations bailed them out. I urge you you check out this New York Fed research for a comprehensive look at ...

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The concept of entropy in the financial field is related to the market efficiency and predictability one; the measure approximate entropy by Pincus (1991) is considered as a market efficiency measure and it has been empirically proven it is correlated to the main market efficiency measures as shown by Eon & Kim (2008) and Risso (2008). I suggest you to ...

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Interest rate is 12%, we'll assume some kind of simple day count scheme like 30/360. Cash flows and discount factors for C payer t disc.fact. rcv.cf pay.cf rcv.pv 0 1 0 -2C 0 1 .88 800 0 704 2 .7744 800 -C 619.52 3 .681472 800 -C 545.18 4 .59969536 800 -C ...

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Classical economics cannot "explain" volatility smiles, but neither does it preclude their existence. Economics is far more abstract than financial "quant"modeling and answers very different questions. In the more abstract framework of economics, volatility skew, mean reverting volatility, bubbles, and crashes are all conceivable scenarios. ...

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In a world of uncertainty no one knows what future profits will be (especially > 1 year from now). All we can do is estimate. Who should we ask? The company management has an incentive to give out estimates that may be too optimistic. If you ask the competitors they are probably too pessimistic. Fortunately we have a machine called the stock market which ...

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