# All Questions

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53 views

### What is the graphic intuition behind Marginal rate of subsitution

So I think I understand the math, but I don't understand the intuition on a 3d graph. Why does the ratio of partial derivatives give us a tangent line on a level curve(indifference curve)? My ...
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### What do the excess supply and demand numbers in this chart mean?

From Econ 101, I thought markets are supposed to equilibrate so that there isn't any excess supply or excess demand. But from a WSJ story, we have the chart below. I believe it says, for example, ...
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### How does the Fed choose its asset purchase rate in an ample reserves era?

The St. Louis Fed's article "A New Frontier: Monetary Policy with Ample Reserves" states that the Fed now uses the IOER and ON RRP rates to set the FFR, instead of open market operations, which are no ...
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### If an endogenous explanatory variable is serially correlated does it mean that its lags are also endogenous?

in panel data when examining economic growth determinants lags are often used to account for endogeneity of explanatory variables. However if the explanatory variable is serially correlated, does it ...
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### What is the relationship between economic growth and equality?

Does economic growth create more or less equality?
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### The purpose of advertising for Pepsi

What is the purpose of advertising for companies like Pepsi who advertise the same product and every person in the modern world knows about it? Why waste money?
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### Bayesian incentive compatibility for a general distribution

Suppose there are $n$ bidders and a seller. Bidder $i$ observes a private signal $v_i$ from $[a,b]$. Let $\mathcal{X} = \times_{i=1}^n[a,b]$ Each bidder is represented by a random variable, that has a ...
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### Regression analysis with interaction and decomposed main effect

I'm trying to figure out if I need to include the main effect in a regression analysis with an interaction if I am already including a decomposed version of the main effect. For example, let: ...
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### Why was the Bank of England nationalized after World War 2?

After the Second World War the new Labour government nationalised the Bank of England. Did this give the British Government any new capabilities? For example, could the Government print money before ...
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### Are there agreements in place between the EU and the US to facilitate trade in services?

What agreements are in place between the EU and the US to facilitate trade in services?
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### Discrepancy of GDP and International Transaction Releases for Exports

The Bureau of Economic Analysis ("BEA") provides consolidated data from several different government agencies. Currently they provide exports under both a Gross Domestic Product ("GDP") release as ...
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### The maximum sustainable yield model: clarifications

I would like your help to understand the Maximum sustainable yield model. This is what I understood with some questions. We consider a population of individuals who are born, possibly reproduce ...
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### Lifeboat vs bailout

I have encountered the term lifeboat in these two contexts: Floating a “lifeboat”: The Banque de France and the crisis of 1889 The 1974 rescue in the UK's secondary-banking crisis. Is the term ...
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### Relationship between Elasticity of substitution of sectoral outputs and elasticity of substitution of inputs

There are two sectors Y1 and Y2. Composite output is given by CES form - Each sector employs Capital and Labor in combination through Cobb-Douglas Production Technology. The paper mentions that ...
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### Greek mathematics' application in the early economic theories

I am writing about the development of mathematics in the Ancient Greece as an assigment and I have to include its relation with economics. However, I lack of sources for this topic and I only found ...
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### How is the level of full employment in an economy determined?

Is this a statistical thing or...? It seems very abstract to me, haha!
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### How much precious metals prices come from their use as investement vs practical use

Some precious metal price come almost exclusively from their value as an investement, as gold, while some others like palladium or osmium have important uses in industries. But lately those metals ...
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### Does the WTO have a mechanism to accommodate states transitioning trade regimes?

If the UK were to leave the EU without a Withdrawal Agreement in place it defaults to WTO trading terms. Does the WTO have a mechanism to accommodate such a transition?
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### Difference-in-differences with long time horizon and repeated treatments

I have a high-frequency panel dataset on the order of $i=150$ and $t=5000$. I am interested in studying the causal impact of a treatment with the following characteristics: The same unit can be ...
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### Best-responding to a stochastically higher distribution of bids

In Auction Theory, Krishna writes that: a bidder who faces a stochastically higher distribution of bids–in the sense of reverse hazard rate dominance–will bid higher (This follows the proof of ...
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### Multiple Forgone Job Opportunities and Economic Profit

I'm told that forgone job opportunities are implicit costs, to be included in calculating economic profit, but I can't seem to see how I could list and consider many different forgone opportunities. ...
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### Positive effects of a Tunisia-EU free trade agreement?

Tunisia might be signing a free trade agreement with the EU very soon. It's called ALECA or DCFTA. Many activists and labor unions are opposing such an agreement because it would result in losing ...
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### Why do higher real interest rates increase land value?

I'm using this equation to calculate market value of land based on the levied land value tax: y = market land value x = land value tax r = real interest rate a = real time-independent land value i = ...
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### The Difference between investment and savings in CA identity

Mathematically speaking the current account is defined as: $$\text{CA}=S-I$$ where $S$ is savings and $I$ is investment. We know for a closed economy $S=I$ so $CA=0$. practically speaking for an ...