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2
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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 ...
2
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0answers
25 views

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, ...
2
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31 views

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 ...
2
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0answers
42 views

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 ...
2
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0answers
24 views

What is the relationship between economic growth and equality?

Does economic growth create more or less equality?
2
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1answer
62 views

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?
2
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1answer
38 views

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 ...
2
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0answers
28 views

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: ...
2
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0answers
31 views

Estimating CES utility (not production) function parameters

The CES utility function has the form \begin{equation} u(x_1,\dots,x_n)=\left[\sum_{i=1}^n\alpha_ix_i^\rho\right]^{1/\rho}, \end{equation} where $\alpha_i$ is the consumption share parameter and $\...
2
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0answers
14 views

The range of subsidies that underpin China’s economic model

I was watching the news the other day and the reporter said that America was complaining about "the range of subsidies that underpin China’s economic model". What exactly are those subsidies?
2
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0answers
14 views

Was there a time when economists “generally described” the 1920s “as being years of increasing protectionism”?

In Paul Bairoch's Economics & World History - Myths and Paradoxes (1993), the very first myth he tackles is this: the 1920s are generally described as being years of increasing protectionism. ...
2
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0answers
20 views

In Korea, violations of foreign exchange controls were punished with the death penalty?

According to Chang Ha-Joon (2007), in (South) Korea, violation of foreign exchange controls could be punished with the death penalty. Is this true? What was/were the exact law(s)? Did anyone ...
2
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0answers
24 views

I have a dataset. How do I convert this data into Indifference Curves?

This is all hypothetical. I understand indifference curves. However, I don't understand how they are produced. I read this question, and the survey answer made sense to me... Research Design: ...
2
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0answers
26 views

Economics of Education

I would like to ask two questions. What are decent schools to study Economics of Education for a PhD? My second question is if there is anybody who could recommend me a good book or research papers ...
2
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0answers
52 views

Are there any studies, academic papers or articles that defy “common” knowledge", i.e that patents give an incentive for R&D to private business?

In Economic Growth and particularly dynamic optimization. My professor taught us that an intertemporal allocation is a dynamic optimum(Pareto Optimum) only if(necessary condition) at any given ...
2
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0answers
27 views

How to know when survivorship bias is a problem

I have panel data where firms disappear from failure and mergers. Conditional on existing as a stand alone firm, I observe all firms. However, I am differencing two periods (Late - Early), and the ...
2
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0answers
37 views

Steady State in Korinek and Simsek (2014)

I was reading a paper by Korinek and Simsek (published in the AER in 2016). The version I cite is an IMF Working paper from 2014. The authors essentially describe an economy which has two types of ...
2
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0answers
97 views

Derivation of demand function

Hello. I'm graduate student in Japan. This time, what I want to ask is how to solve the profit maximization problem using the image production function and derive the demand function. This ...
2
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0answers
33 views

Effect of Import Tariff on Supply of Currency on Foreign Exchange Market

I'm struggling with this question below for my macroeconomics course. If Argentina were to impose a tariff on its imports, how will the supply of Argentina's currency and its exchange rate be ...
2
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0answers
29 views

Why is there a Lagrangian Multiplier in the Dynamic Programming Problem of the RBC model?

Suppose that the household faces the following problem: $\underset{ c_t , k_{t+1}, n_t } \max \mathbb{E}_0 \sum_{t=0}^{\infty} \beta^t \ln c_t + \ln (1 - n_t)$ subjected to $ k_{t+1} = A_t k_t ^{\...
2
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0answers
50 views

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 ...
2
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0answers
14 views

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?
2
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0answers
9 views

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 ...
2
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0answers
22 views

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 ...
2
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0answers
14 views

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 ...
2
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0answers
54 views

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 ...
2
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0answers
58 views

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 ...
2
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0answers
20 views

Global stability in a ramsey growth model with multiple equilibria

Let's say that we have a model with multiple equilibria. $c$ refers to consumption and $S$ refers to natural capital stock. The dynamics that describe the economy are as follows: $$\dot{S}\left(t\...
2
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0answers
18 views

Decomposition of stock index movements

I want to decompose stock index movements. I know the estimated 12 months earnings growth rate ($g_1$), estimated long run earnings growth rate ($g_2$) and the index value. I am about to use two-...
2
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0answers
246 views

Finding long run equilibrium price, quantity and number of firms with a linear average cost function

I've been been brushing up on my micoreocnomics lately and I came across a question in Perloff that looked really simple, but for some reason I am struggling to answer: Assume we are in the long run ...
2
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0answers
28 views

Can State Owned Enterprises compete with each other without a private enterprise in a market? Examples

In a domestic market, there exist multiple (around 5) multi-product state-owned enterprises. In a few products, SOEs compete with private enterprises while in the majority of products, the SOEs share ...
2
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0answers
120 views

When is the PPF convex to the origin?

Given a 2X2 model (2 goods, 2 inputs), if the factor intensities (capital/labour ratio) of the two goods along the Pareto set are unequal, then we get a concave PPF. Can we get a convex PPF in some ...
2
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0answers
20 views

Since the financial crisis, what measures have been taken to solve the too-big-to-fail problem?

Ben Bernanke (2010): If the crisis has a single lesson, it is that the too-big-to-fail problem must be solved. So, what measures have been taken to solve the too-big-to-fail problem? To what ...
2
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0answers
15 views

Data source for the relative frequency of different kinds of expiration date by retailers? (use by, sell by, best by)

I'm not sure if this is the correct Stackexchange site for this question, but I am interested in the economic and environmental effects of food waste reduction. A common policy proposal to reduce food ...
2
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0answers
30 views

How to control for population in Difference-in-Difference?

Random example, but let's say I'm examining the effect of a health program on influenza cases in India. They just randomly start the program in 7 of the 29 states. I have data on the number of flu ...
2
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0answers
23 views

Why is underpayment so prevalent? (23% of those who are 25 and are entitled to the UK's National Living Wage are underpaid!)?

Context: https://www.theguardian.com/uk-news/2018/nov/27/one-in-four-uk-workers-covered-national-living-wage-underpaid-low-pay-commission Why is it that employers can seemingly get away without ...
2
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0answers
32 views

Demand equation with demographics

I am trying to reconcile the derivation of a demand equation with what I actually run in an OLS model. After solving $$max_{x_1,x_2}U(x_1,x_2)= \alpha ln(x_1) + \beta ln(x_2)$$ subject to $$p_1x_1+...
2
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0answers
10 views

How is the level of full employment in an economy determined?

Is this a statistical thing or...? It seems very abstract to me, haha!
2
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0answers
15 views

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 ...
2
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0answers
16 views

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?
2
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0answers
49 views

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 ...
2
votes
1answer
73 views

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 ...
2
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1answer
53 views

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. ...
2
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0answers
42 views

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 ...
2
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0answers
68 views

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 = ...
2
votes
1answer
61 views

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 ...
2
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0answers
64 views

How is Aggregate Supply(Willing) equal to National Income(Actual)?

Acc. to definition of Aggregate Supply It is the total value of final goods and services that the producers are willing to supply in country . Definition of National Income It is the value of ...
2
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2answers
51 views

Change in money supply

Suppose a bank makes a loan of $1M to someone taking out a mortgage to buy a house by crediting that person's bank account with a deposit equal to the size of the mortgage. Suppose the required ...
2
votes
2answers
71 views

Can Autonomous Consumption be Greater than Income of individual?

Autonomous consumption is done either through past savings or by borrowing money or selling asset to have minimum consumption in order to survive. So can autonomous consumption be greater than our ...
2
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0answers
26 views

Showing that a market model has arbitrage and describing martingales

This is an exercise which I came upon while studying an introduction to financial mathematics. Exercise : Consider the finite sample space $\Omega = \{\omega_1,\omega_2,\omega_3\}$ and let $\...

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