# All Questions

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### Economic effects of very large (>200%) household-debt-to-GDP-ratio in advanced economies

According to OECD figures, five OECD countries have houshold-debt-to-GDP ratios in excess of 200%: Denmark 292.0% Netherlands 277.1% Norway 221.8% Australia 211.8% Switzerland 211.2% Most of ...
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### Is it possible to derive the marginal product of an input using a transformation function?

I'm using a transformation function $F(\cdot)$ to describe a production set $y = (x, z, L, K)$, where $x$ and $z$ are private goods denoted by positive numbers, $L$ is labour input, $K$ is capital ...
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### Has there been anyone since the philosopher Thales that has held an extremely detached view of money, and also found innovative ways to profit?

According to legend anyway (ie Aristotle's account), Thales was a business man of his time! On the motive Thales had for attaining material possession, Aristotle held that Thales was only out to prove ...
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### A theoretical/mathematical approach to cost-benefit analysis and cost-utility analysis in health economics

I am looking to get some resources looking at health economics from a pure mathematical point of view, ie developing models using partial differential equations or complex analysis. In particular, I ...
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### Are some laws “Progressive” for businesses?

(United States Based) I'm not sure if this is the right exchange to ask this in. You know how there are progressive tax laws where lower income individuals are taxed a smaller percent of their income. ...
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### Transportation models in economics

How would one go about modelling the effectiveness of public transportation? More specifically how does one go about comparing two transit systems in terms of their ability to move a larger numbers of ...
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### Optimal monetary policy under commitment & FOCs

Clarida, Gali, Gertler(1999) show the optimal monetary policy problem of central bank for minimizing loss function under "Commitment" is a output gap, is a inflation rate, ~AR(1) is a supply shock. ...
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### Why don't firms and individuals do much more risk management? Couldn't they all hedge all kinds of risks financially?

There are many risks in the economy that agents could hedge. For example, house prices can go up or down, healthcare costs canchange, gas prices constantly change in fact, food prices,etc. They all ...
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### GMM: Under What Conditions Does Adding a Seemingly Unrelated Moment Condition Increase Efficiency?

For simplicity, I'll offer the simplest of endogenous models. Suppose we have the following scalar model: $y=\beta x+u$ where $E[ux]\neq 0,\;E[uz]=0\; \text{and}\;E[u^2|z]=\sigma^2$ Clearly we can ...
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### What is the difference between the discrete choice method and the generalised cost method in transport planning?

I have been using the generalised cost method in an agent based model. The generalised cost method enables each individual agent to make a decision on what mode of transport it will take given a range ...
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### Reference Request: Cost Benefit Analysis of Conversion of Undeveloped Land for Housing

London is surrounded by a "green belt", a large area which government policy has protected from housing development. The current high cost of housing in London has led some to advocate a selective ...
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### Definition: Extractive Goods (Comtrades HS-Categorization)

I'm currently writing a paper on China in Africa and I'd like to compare Africas Exports to China with its exports to Europe and the USA. More specifically I'd like to find out if the Exports to China ...
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### How do I convert real gdp into chained-dollar real GDP?

I have quarterly data for real GDP from 1981-2015. I also have quarterly chained-dollar real GDP from 61-2012. I need to have them converted into one series. I've looked up several different formulas ...
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### Proof of Proposition 1.4 from Microfoundations I by Kreps

Regardless of the size of X (set of all possible objects), if a preference relation which is complete and transitive is defined on it, then the corresponding choice function generated by it will ...
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### Difference-in-Difference on State Sales Tax Rates

In an attempt to evaluate a potential U.S. National Sales tax rate, it was suggested on this forum before that I consider a difference-in-difference on state sales tax rates before and after they ...
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### Ultrafilters in Social Choice Theory Literature Request

I am an undergraduate math major who is intrigued about social choice theory. I am in the early stages of planning my senior project and was wondering if anybody had some recommendations of literature ...
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### Equal Payment Series

The question is: A man is planning to retire in 20 years. Money can be deposited at 8%, compounded monthly. It is estimated that the future general inflation rate will be 3% compounded annually. What ...
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193 views

### Production in the long run - calculating wage and rental elasticity of demand

I have data for a business firm for two periods. The data include: output (Q), capital (K), labor (L), wage (W) and the rental rate of capital (R). Here they are: ...
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174 views

### Optimal commodity taxation - solving for the optimal tax rates?

I need to solve for optimal tax rates for two products. In my model there are N identical households that maximize their utility function subject to a budget ...

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