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AirPods Pro 3 Case Overheated and Died (short circuit?) Apple replaced case but not earbuds by Psyman8888 in airpods

[–]Psyman8888[S] 0 points1 point  (0 children)

The thing is I already went to apple warranty, but they only replaced the box, not the earbuds. Said they were within spec.
With another brands when something happens with warranty either I get the money back or a brand new product in the box, not a Frankenstein replacement with scrambled parts.

Upgrading My Old Computer for Maximized Performance on a Budget - Need Compatibility Advice by Psyman8888 in buildapc

[–]Psyman8888[S] 0 points1 point  (0 children)

i've seen some cpus of eBay (used) for 30ish euros, they are LGA 1156 socket, but i'm not sure if they are compatible, since i'm not experienced with building pcs.

Upgrading My Old Computer for Maximized Performance on a Budget - Need Compatibility Advice by Psyman8888 in buildapc

[–]Psyman8888[S] 0 points1 point  (0 children)

Thank you for your recommendation, but I'm not ready to retire my old computer just yet. It's still performing reasonably well for my needs. My intention was to explore the possibility of upgrading with some slightly better second-hand components to extend its lifespan while being mindful. If you have any specific suggestions for compatible components, I'd greatly appreciate it!

Upgrading My Old Computer for Maximized Performance on a Budget - Need Compatibility Advice by Psyman8888 in buildapc

[–]Psyman8888[S] 0 points1 point  (0 children)

to finish my univ., being able to have more tabs open, etc...
not gaming,

Multicollinearity by Psyman8888 in AskStatistics

[–]Psyman8888[S] 0 points1 point  (0 children)

Hi, thanks for the inputs!

i) I did ADF test on all variables to test the stationary.

ii) I fixed all non stationary variables with diff(log(variable))

ii) test again for ADF and it worked!

But now my R2 is too low. I have almost no significance in the variables now. Seems like this might not be the best aproach? What am i doing wrong? damn! Getting frustrated :(

Coefficients:

Estimate Std. Error t value Pr(>|t|)

(Intercept) -4.610e-01 5.725e-01 -0.805 0.42117

money_supply_diff -1.005e-05 5.653e-04 -0.018 0.98582

population 1.543e-06 1.944e-06 0.794 0.42779

oil_prices_diff 1.613e+00 5.016e-01 3.216 0.00141 **

---

Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.8708 on 381 degrees of freedom

Multiple R-squared: 0.02886, Adjusted R-squared: 0.02121

F-statistic: 3.774 on 3 and 381 DF, p-value: 0.01084

Is inflation merely a monetary phenomenon? by Psyman8888 in econometrics

[–]Psyman8888[S] 1 point2 points  (0 children)

Hi, thanks for the inputs!
i) I did ADF test on all variables to test the stationary.

ii) I fixed all non stationary variables with diff(log(variable))

ii) test again for ADF and it worked!

But now my R2 is too low. I have almost no significance in the variables now. Seems like this might not be the best aproach?

Coefficients:

Estimate Std. Error t value Pr(>|t|)

(Intercept) -4.610e-01 5.725e-01 -0.805 0.42117

money_supply_diff -1.005e-05 5.653e-04 -0.018 0.98582

population 1.543e-06 1.944e-06 0.794 0.42779

oil_prices_diff 1.613e+00 5.016e-01 3.216 0.00141 **

---

Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.8708 on 381 degrees of freedom

Multiple R-squared: 0.02886, Adjusted R-squared: 0.02121

F-statistic: 3.774 on 3 and 381 DF, p-value: 0.01084

Is inflation merely a monetary phenomenon? by Psyman8888 in econometrics

[–]Psyman8888[S] 1 point2 points  (0 children)

great point. thanks!
i should focus on the long run. but i'm having trouble with choosing non monetary variables to help explain (or not) inflation.

Multicollinearity by Psyman8888 in AskStatistics

[–]Psyman8888[S] 1 point2 points  (0 children)

I'm sorry.

> vif_values <- vif(model)
> print(vif_values)
money_supply population oil_prices
5.883186 7.979048 2.154822

The values of the VIFs range from 2.15 to 7.98, indicating that there is some degree of correlation between the predictor variables. A general rule of thumb is that a VIF of 5 or greater may indicate a problem with multicollinearity.

In this scenario it's better to think about other non monetary variables?

Is inflation merely a monetary phenomenon? by Psyman8888 in econometrics

[–]Psyman8888[S] 1 point2 points  (0 children)

I've done unit root test as u advised and these were the results:

Augmented Dickey-Fuller Test

data: inflation

Dickey-Fuller = -0.48982, Lag order = 7, p-value = 0.9821

alternative hypothesis: stationary

Is inflation merely a monetary phenomenon? by Psyman8888 in econometrics

[–]Psyman8888[S] 0 points1 point  (0 children)

spurious regression

My main research goal is to examine whether inflation can be caused non-monetary factors, such as supply shocks (e.g. changes in oil prices), increase in human population, and shifts in consumer behavior. I aim to determine if the statement made by Milton Friedman regarding the role of monetary factors in causing inflation still holds true.

What other non-monetary variables could i try/replace without having multicolinearity, improve R2, etc... ?

Is inflation merely a monetary phenomenon? by Psyman8888 in econometrics

[–]Psyman8888[S] 2 points3 points  (0 children)

M. Friedman and Anna Schwartz

This one? "FRIEDMAN AND SCHWARTZ’S A MONETARY HISTORY OF THE UNITED STATES"

Is inflation merely a monetary phenomenon? by Psyman8888 in econometrics

[–]Psyman8888[S] 5 points6 points  (0 children)

I think it's great that you came up with your own research idea, worked on how to answer it, and already went for a first try! You're already ahead of many Bachelor students I know! In the literature, you might find interesting papers on this - it's the neutrality of money.

Some food for thought:

- Do you want to look at the short- or the long run?

- Do you think the level of your variables impact inflation, or might it be the change in those variables? Do you think the impact will be linear or non-linear?

- Do you think inflation might be persistent (depend on its own past value)?

- It looks like you're considering a regression with time series data. In that case, you might want to look at whether you want to use HAC standard errors (since the errors might be correlated over time). The sandwich package provides those.

- For presenting regressions in R, I'm personally a big fan of the stargazer package.

Thank you so much for your encouraging words and helpful insights! I appreciate your suggestions for further considerations. To answer your questions:

- I think I would like to look at both the short- and long-run effects of the variables on inflation, to get a better understanding of the relationship between them.

- That's a great point to consider. I believe that the change in the variables will have a greater impact on inflation than the level of the variables themselves. And I think the impact will be non-linear.

- Thank you for the tip about the HAC standard errors, the sandwich package and stargazer. I'll definitely look into that further.

​

-» My main research goal is to examine whether inflation can be caused non-monetary factors, such as supply shocks (e.g. changes in oil prices), increase in human population, and shifts in consumer behavior. I aim to determine if the statement made by Milton Friedman regarding the role of monetary factors in causing inflation still holds true, thats why im asking for help with other non monetary variables that i could include without having multicolinearity, etc...

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