# All Questions

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68 views

### Can we have a Non-Reflexive Preference Relation?

I've been thinking about preferences alot recently and have been specifically thinking about the reflexivity requirement. That is: $$x \succsim x$$ Though this is apparent and obvious, I have been ...
4 views

### How can I describe a differential equation for a set of data?

I am trying to find a differential equation to describe private debt as a percentage of GDP from the following link? How can I accomplish this? Data Source
10 views

### Does Efficient Market Hypothesis make anticipated monetary policies useless?

Since the market perfectly captures all the information, is it true that any anticipated monetary policy has no impact on equity prices? Or the “information” has an immediate impact but the “event” ...
3k views

### Mathematical Micro/Macro Economics Textbook Recommendation

I was formerly an economics major and now also majoring in mathematics. I want a textbook that is rigorously based on mathematics; not just using mathematics whenever the author wants, but in a more ...
6 views

### Finding expenditure function from indirect utility function

Suppose you have this indirect utility function Find the expenditure function
35 views

### A new economic system in 2020? [closed]

A new economic system in 2020? Is it possible to create a hypothetical economic system in this real world, based on the following steps: 1- Develop a software application/website where we can have ...
8 views

### China benchmark rates and Shibor relationship (chart)

I made the chart below for an assignment on People's Bank of China monetary policy during the financial crisis. The problem is that it got me very confused about the relationship between these ...
183 views

### Axiom: More is Better; But when is more better?

I'm taking an introductory microeconomics course and have been introduced to the 3 axioms of economic preferences. These include Completeness Transitivity Non-satiation My understanding of non-...
46 views

### Most significant factors in the price of a goverments bonds

As a follow up on Long-,short-term interest rates and inflation. Inflation is clearly a factor(tho not possible to model mathematically) when it comes to the market price of a bond. I can think of ...
18 views

### Am I correct that cyclical unemployment can be negative?

Let's start with stating and emphasizing some truths that we will need later. Overall unemployment rate=Frictional unemployment + Structural unemployment + Cyclical unemployment. Also, Natural rate of ...
20 views

### Are these two derivatives the same with regards to TR?

Given that Marginal Revenue is change in Total Revenue: TR = P*Q P = f(Q) TR = f(Q) * Q MR = dTR/ dQ Or ...
95 views

### Calculating the amount paid for a loan in today's dollars

So I was trying to figure out the amount paid for a loan in today's dollars using two different methods but they give me different results. I was hoping that someone could explain which method is ...
137 views

### Perfectly competitive firms. Economies of scale

My textbook says the following: "Perfectly competitive markets only achieve productive efficiency if you assume that there are no economies of scale in the industry." Why is this the case? And by "...
14 views

### What are the different types of Adjustable Rate Mortgages(ARMs)?

I'm aware of Hybrid ARMS that have a 7 fixed 1 adjustable composition and Convertible ARMs that can be converted to fixed rates but are there other types of ARMs? For example for this Ginnie Mae ...
46 views

### regression method for data that contain a number of observation for several years

I have a data set about 125 companies. For each company I have the salary and some other variables about the top 5 managers in each company. One observation contains the top 5 managers in each one of ...
22 views

### Unbiasedness of MoM estimator

Why is the method of moments estimator $g(\bar{Y})$ of $\theta$ only unbiased if $g(\mu)$ is a linear function of $\mu$? (Note: It is assumed that $\theta=g(\mu)$ for some function $g$ and $\bar{Y}$ ...
22 views

### Do countries with high taxes end up with low government debt but high private debt?

I'm curious if my observation that some Scandinavian countries (Denmark, Sweden) have high taxes, low government debt, but high private (in particular high household) debt is applicable more generally ...
7 views

### List of stock and bond indexes for countries

I am doing some master`s degree research and looking for the list of stock/bond indexes for developed and developing countries. So the excel-file I should gather in the end will look like this: ...
38 views

### Why do Eurozone members have a commonly higher Debt-to-GDP ratio?

As you could find out from the map, among 22 countries whose debt-to-gdp ratio is above 50%, only 7 are not Eurozone members, and from which only UK is comparably large economical entity. ...
16 views

### How are PPP, nominal exchange rates and inflation related?

This Forbes article discusses how changes in the market exchange rate can be used to estimate an inflation rate thanks to the principle of purchasing power parity (PPP). Can someone distill this ...
26 views

### Transversality Condition

I am reading the first section of chapter 10 of the Obstfeld and Rogoff textbook Foundations of International Economics and I have a doubt in how the transversality condition is obtained. Even though ...
13 views

### Should I use start of quarter interest rate or end of quarter interest rate for time series regression?

Not sure what the correct procedure is since there is daily data for the period. Assume I can't find the average for the period.
7 views

### Why did the central bank of China raised the amount of repos during the financial crisis?

According to the PBOC monetary reports, the total amount of repos conducted went from 1.27 trillion yuan in 2007 to 3.3 in 2008 and further increased to 4 trillion in 2009. It wasn't until 2012 that ...
31 views

67 views

### why does an aging population positively impact on a decline in the smoking rate?

I've been studying the causes of a decline in the smoking rate, and I found out from the article that an aging population causes the decline. But, I'm not sure why it could happen. Is that because ...
15 views

### How can I control for trade between UK and Australia in my difference-in-difference trade model?

I am doing a report on whether environmental regulation has an impact on trade, using a difference-in-difference model and seeing whether the EU Industrial Emissions Directive had an effect on UK ...
14 views

### Unbias, consistent,efficent estimator [closed]

I would like to ask for an example of estimator for the following: 1. unbiased+consistent (Is it the mean/sample variance?) 2. bias +consistent 3. unbiased + inconsistent 4. biased + inconsistent