# Tag Info

Accepted

### Regression on individual vs collapsed data

EDIT: Clearly, the controls were the problem. Without controls, this works fine, but with controls not. We are starting to learn that including controls linearly is not as innocuous as one might think....
• 1,843

### Regression on individual vs collapsed data

Should we expect the regression on individual and aggregated data to be the same? Not necessarily. One reason is that data may be aggregated in more than one way, and different aggregations may yield ...
• 8,369

### Regression on individual vs collapsed data

In general, regressing at the individual level does not guarantee the same results as at the group level. The results may be the same, depending on how the data was collapsed, but not always. However, ...
• 6,148

### What makes statistics economical reports so varied and different?

Regarding the general question in the title, the reasons why "the same" variable vary across sources depends very much on the particular variable you are talking about. Personally, one of my first ...
• 8,591

### Definition of market to book value?

They are not the same. Basic accounting equation: Assets = Liability + Shareholder Equity Assets refers to what the company actually owns: cash, property, ...
• 431
Accepted

### Mythbusters - Determine optimal boarding strategy based on time and satisfaction score

I would start with your generic $$f(t,s) = t \times s$$ and, instead of add weights or factors to this, I would add other variables related to time and satisfaction like: boarding time as function of ...
Accepted

### Accounting for household work in the GDP

Are there techniques, regardless of practically how difficult they are, of possibly measuring domestic work? Yes, measuring household gross production (GDP measures gross product not amount of work), ...
• 56.4k

### Measuring growth rate when values are negative

For negative values alone you can define relative change as: $$\frac{X_t-X_{t-1}}{|X_{t-1}|}$$ This is quite common way to deal with rates of change when you have negative numbers. However, when the ...
• 56.4k
Accepted

### History of Macroeconomic Measurements before GDP

Maybe the earliest economic quantities to be measured are the number of people in a tribe or nation as a measure of economic and military potential. Roman (Roman king Servius Tullius) and ancient ...
• 16.3k
1 vote
Accepted

### Debt-to-GDP or Debt-to-Revenue?

You may want to consider this as the difference between the potential to pay and the actual means to pay on hand. Since government revenues will ultimately come from GDP (excepting foreign aid etc.), ...
1 vote
Accepted

### The application of integration by parts involving the lorenz curve

As for your first question, about the second inequality below: first notice that the parts underlined in green are the same, as $\bar F = F(y_1)$ Then the text simply decomposes one of the integrals ...
• 3,697
1 vote

### What is the best observable proxy for the instantaneous risk-free market interest rate?

All risk-free rates are essentially tied to Fed policies, so it makes little sense to ask for a measure that is independent. They are all tied together via arbitrage. Yes, there are spreads between ...
• 9,907
1 vote
Accepted

### What is the best observable proxy for the instantaneous risk-free market interest rate?

SOFR is becoming more and more popular Also there are other measures of repo rates, and also so futures on sofr
• 182
1 vote

### GDP versus GNP. Which is a better gauge of a country's economy size and prosperity?

I think the safest answer is “it depends.” Firstly, the terms “stronger economy” or “enjoy prosperity” are subjective, so I think if you want a stronger answer, you would need to tighten that part of ...
• 9,907
1 vote

### Can changes in the value of money be measured via interest rates and future contracts?

For interest rates, the theory(spelled out as the Fisher equation) is that there are two components to the nominal interest rate. These are the real interest rate and the expected inflation. The real ...
• 2,658
1 vote

### Can changes in the value of money be measured via interest rates and future contracts?

Yes, but... In theory what you suggest is pretty standard text book, and in fact Keynes makes exactly this point in his book The General Theory of Employment, Interest and Money as a way of getting a ...
• 1,478

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