Top new questions this week:
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Recently Belarus simply decided to ban inflation. the president quoted “From today, any price increase is prohibited. Prohibited!,” This is easy to do for a dictatorship but how economy is …
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How do I show that profit maximization implies cost minimization (in pure competition)? Suppose we only consider inputs $l,k$ whose prices are $w,r$ and output price $p$. Profit is $\pi = pf(k,l) – wl …
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The demand curve is a good model to find of utility because it takes marginal utility of the good into account. However, the supply curve is based on marginal cost of production and marginal revenue …
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Question: The utility from daily income $(x)$ of an individual is given by $$U(x) = 100x – 0.5x^2$$ The only source of income is his earnings. Hence, $x = wl$ where $w = \text{wage}$ and $l = \text{…
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I am interested (for no particular reason) in estimating a hypothetical Differences-in-Differences model with one period of treatment. However, we observe small non-linear violations of the parallel …
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I would like to learn how the expression below is 1. Without understanding it I am having trouble to go on with Chebbyshev’s Inequality. It’s maybe too basic, but I appreciate any help.
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Is it consistent? How can we derive whether an estimator of the parameter is consistent or not?
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Greatest hits from previous weeks:
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I encountered this phrase while reading up on growth models – that is to work with a function in intensive form. What does it mean when a function is in intensive form? Thanks!
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GDP is a measure of a country’s production. $$GDP = C + I + G + X_n$$ $C$ = Consumer Consumption $I$ = Gross Investment $G$ = Government Expenditures $X_n$ = Exports – Imports Exports are what we …
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I was reading the ISO 10962 (the 2015 version) which classifies financial instruments. In the Collective Invesment Vehicle (CIVs) they separe them in: Standard Funds Hedge Funds REIT ETF Pension …
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In 1960, the physicist Eugene Wigner wrote the article “The Unreasonable Effectiveness of Mathematics in the Natural Sciences” explaining how unexpected it is that mathematical formalism can …
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I have a utility function of $U = B^{.67}Z^{.33}$ with Income $Y$, Price of Good B is $P_b$ and price of Z is $P_z$ I now need to derive an engel curve for this. I have no idea where to start.
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I am stuck on the following exercise, related to preference relations and von-Neumann-Morgenstern utility function. A farmer wants to dig a well in a square field $[0,1000]\times[0,1000]$. The …
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Economists assume that consumers have a set of preferences that they use to guide them in choosing between goods. These preferences have to satisfy three properties: completeness, transitivity and “…
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Can you answer these questions?
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Writing a paper on revealed comparative advantage and it’d be super helpful to have historical data on exports of different goods going back 30+ years. Ideally I’d be able to filter by industry and …
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Well, in one years, Credit suisse has lost almost 60 % of its value in bourse. Yesterday, Credit Suisse has lost 4 Mdollars. In 2008, Lehman Brother lost 77% of its value in bourse in one year and was …
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The goal is to reproduce this chart: I first looked at the legend. It reads: “Correlation of Front and Back Fed Funds curve, Pivoted Around Peak Rate (Rolling 250 Day). Then I noticed that the Y-…
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