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3 votes
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Variable dropped for collinearity in feols package in R (TWFE)

sorry if this is a basic question (I'm new to econometrics). I have the following regression model: $Y_{i,t} = \alpha_i + \gamma_t + \beta_1\cdot X_{1,i,t} + \beta_2 \cdot X_{2,i} + \beta_3 \cdot X_{3,...
user308036's user avatar
1 vote
1 answer
70 views

Nicholson & Snyder V.S. Varian for teaching?

I will be teaching both Intermediate Micro 1 and 2 and would like to pick one textbook for both courses so students don't have to spend too much. I am inclined toward Nicholson & Snyder's ...
Galactic Economist's user avatar
0 votes
1 answer
64 views

Independence Axiom and Expected Utility Theorem Proof

In my micro class we covered the proof of the existence of a Von Neumann–Morgenstern utility representation of preferences $\succeq$ over a set of lotteries $\Delta(Z)$ - where $Z$ is some finite ...
Joseph Basford's user avatar
0 votes
0 answers
33 views

What kind of figures are insightful in game theory?

I am finishing my thesis on a signalling model in which I characterize the perfect bayesian equilibria of the game. However, I find that my final expressions are too mathematical and that the ...
Ignacio Canabal's user avatar
0 votes
1 answer
27 views

Delinquency rate on student loans in the United States

Why is the delinquency rate (90 days+) on student loans at an all time low in the United States (as illustrated in the last Household debt and credit report of the New York Fed). For most borrowers, ...
Stradam's user avatar
0 votes
0 answers
23 views

True Market Capitalization

Market capitalization just extrapolates a price from the current share price and number of outstanding shares. While this reflects a theoretical value for the companies/stock market in question, it ...
Lawnmower Man's user avatar
0 votes
1 answer
74 views

Linear model estimated as log-log: What is the bias exactly?

Consider a causal model: $$ \text{(I)} \qquad y = \beta_0 + \beta_1 x_1 + \beta_2 x_2 + \beta_3 x_3 + \epsilon$$ Now, assume we estimate it by OLS in the form: $$ \text{(II)} \qquad \ln(y) = \alpha_0 +...
Athaeneus's user avatar
  • 834
2 votes
1 answer
77 views

Is CES production representing the average of inputs?

I know that the Constant elasticity of substitution production function is given by: $$Q=\gamma\left[\delta L^{-\alpha}+\left(1-\delta\right)K^{-\alpha}\right]^{\frac{-1}{\alpha}}$$ where $\gamma$ is ...
Pallak Goyal's user avatar
0 votes
0 answers
16 views

What does A-coefficient, A-star-coefficient, Leontief inverse, and Ghosh inverse means in EEIO?

All 4 features are dependent of the transaction Z table, where Z table is an NxN matrix of sectors representing input/output or export/import. Intuitively, I'm still confused by what they do. From ...
David LE's user avatar
0 votes
1 answer
25 views

References for minimum distance estimator

What is the formula for finding the minimum distance estimator and how does it differ from GMM? Also, do you know of any good resources on MD? Can't find any besides my textbook. Thanks!
GraceLynn87's user avatar
1 vote
0 answers
24 views

Modified Elasticity Calculation

I have 5 yrs worth of price and unit sold data for retail products. Generally these products have MRP and sold at some discount. I want to create elasticity curve for these products. However over a ...
Sourabh's user avatar
  • 21
0 votes
1 answer
235 views

Why can't Russian CB influence on dollar?

I read in Russian article that Russian CB can't influence on dollar. CB can't depreciate dollar. CB can influence on rate of RUB only. But if there is demand on USD or RUB then why can't CB influence ...
Mike_bb's user avatar
  • 143
0 votes
0 answers
44 views

What is liquidity of dollars?

I read Russian article about exported inflation and it was written there about liquidity of dollars: In order to reduce national debt of the USA and to stimulate economic growth government of USA ...
Mike_bb's user avatar
  • 143
1 vote
0 answers
35 views

Can we use the utility of discounted flows to do asset pricing?

Is it possible to do asset pricing by using the expected utility of the present value of all future discounted cash flows ? I aim to use this utility function to define an optimal portfolio, but I ...
Ignacio Canabal's user avatar
0 votes
0 answers
17 views

Negative externality in consumption to a Cobb Douglas utility function

I am performing a brief analysis with a Computable General Equilibrium Model approach. I want to apply a negative externality in consumption to a Cobb Douglas utility function, any idea to do it and ...
Clonaclo's user avatar
3 votes
0 answers
37 views

Which european countries have closest economic ties with Qatar?

I am looking for information on the strength of EU-Qatar economic ties by country - in absolute terms and in proportion to the total amount of trade or GDP. I am not aiming at a deep economic analysis ...
Roger V.'s user avatar
  • 131
2 votes
2 answers
272 views

MMT suggests that taxation can be used to fight inflation. What would be an argument against this suggestion?

Yesterday, I watched the MMT documentary Finding the Money. Modern monetary theory (MMT) provides an alternative viewpoint that sounds to me consistent with standard economic theory. Deficit spending ...
Larry Freeman's user avatar
0 votes
0 answers
42 views

Origin of terms Harrod neutral, Solow neutral and Hicks neutral

I just looked for the same question on the exchange but I didn't find anything, I even tried to look for the answer on Google but it seems it's not present. Could someone give me the origin of these ...
Pepus's user avatar
  • 93
0 votes
0 answers
60 views

Can I use lagged independent variable as an instrument?

I am doing my Economics dissertation on the impact of competition law stringency (measured 0 to 1 on an index) on R&D levels as a % of GDP. I have an unbalanced panel data set of countries from ...
econstu123's user avatar
0 votes
0 answers
28 views

Derivation of Euler Equation in presence of the Dixit-Stiglitz Aggregator

I reading the working paper of Sebastian Banz (2012). I have an issue with the derivation of the Euler equation. The author models the demand side of the economy as follows The representative consumer ...
Maximilian's user avatar
1 vote
0 answers
31 views

Ideal timeframe to consider for elasticity curve

I have transaction data for luxury retail domain. It is roughly 5 years of transaction data which provides week / month level details in terms of number of units being sold at a given price point. I ...
Sourabh's user avatar
  • 21
1 vote
0 answers
35 views

Diamond-Dybvig model - condition for bank run

I am following the textbook of Freixas and Rochet (p.249 and 253) and cannot understand where their condition for bank runs comes from: They say that bank runs occur iff $$C_1 > \pi_1C_1 +(1-\pi_1 )...
ABCBAA's user avatar
  • 91
1 vote
0 answers
34 views

Reconciling Continuity of Binary/Preference Relations with Continuity of Functions/Correspondences

There are various ways to express the concept of continuity of a binary relation, but one I've come across seems to imply the closed-graph property is sufficient. That is to say: For a nonempty set $X$...
hillard28's user avatar
3 votes
0 answers
88 views

Mean Preserving Spreads as a Markov Kernel

From Blackwell's theorem, it is possible to draw an equivalence between one signal being a garbling of another and the statistical notion of a Mean Preserving Spread. Consequently, at least in the ...
matthewoulton's user avatar
9 votes
3 answers
1k views

Cost Minimization and Karush-Kuhn-Tucker

A firm produces an output $y$ using two inputs $x_1$ and $x_2$, where the production function is given by $y = \sqrt{x_1 x_2}$ for any $(x_1, x_2) \in \mathbb{R}^2_+$. Union agreements obligate the ...
bruno's user avatar
  • 327
2 votes
2 answers
292 views

All-pay auction question problem

In a sealed bid all pay auction, the highest bidder receives the good but every buyer pays the seller the amount of her bid regardless of whether she wins. Suppose there are two bidders whose ...
GraceLynn87's user avatar
1 vote
1 answer
48 views

Shouldn't the answers c & d be correct? [closed]

Credit used for investment purposes can lead to an increase in total spending and an increase in total output, with the possibility of the total output increasing either more or less than the total ...
youssef ashraf's user avatar
2 votes
1 answer
65 views

Equivalence of two definitions of monotone preference

In MWG, the definition of weak preference is for all $x,y \in X$, $y>>x$ implies $y\succ x$ . But I have read some other articles that define weak preference as $y\geq x\implies y\succeq x$. ...
Nonenicht's user avatar
  • 113
2 votes
2 answers
161 views

Finding the distribution in OLS

I have the following linear regression model: $$ Y_i = \beta_0 + \beta_1 x_i + \epsilon_i $$ where $\epsilon_i$ are independent $N(0, \sigma^2)$ random variables. Let $\hat{\beta}_i$ denote the ...
bruno's user avatar
  • 327
4 votes
1 answer
77 views

Studies of demand for having children as price goes to zero

Are there any studies analyzing how parents have/adopt children as the cost of having them is reduced? In particular, how many children would there be per say a thousand people if the cost were fully ...
EmmanuelMess's user avatar
4 votes
1 answer
173 views

Quasi-linear microeconomics problem

Hey guys I need your help to solve the following problem. Here's my attempt. Given the function: $$u(x_1,x_2)=x_1+x_2^\beta, \ \ \beta \in (0,1).$$ Write down the UMP and solve for the Walrasian ...
giudale's user avatar
  • 41
2 votes
0 answers
31 views

Degrees of Risk aversion and Expected utility [closed]

There are two agents with utility functions $g_1$ and $g_2$, where the agent with function $g_2$ has higher (absolute) risk-aversion. The agents face a lottery $((q,x_1),((1-q),x_2))$, i.e. agents ...
Ramandeep's user avatar
4 votes
1 answer
108 views

Proof Mean with a Smaller Sample Size is a Mean Preserving Spread

I am attempting the following exercise from Annie Liang's excellent lecture notes: I have written an attempted proof (below), but I'm worried about the independence assumption I make. In particular, ...
matthewoulton's user avatar
4 votes
1 answer
67 views

Random Utility Model Multiple Choice Question. Which one is correct?

In this random utility model, which of the five statements is true? I've been thinking about this question ever since the exam... I said (B).
Martin's user avatar
  • 53
1 vote
1 answer
86 views

What are exported inflation and imported inflation?

I read in some articles that there are such notions as "exported inflation" and "imported inflation". But it was not written about in detail. What are exported inflation and ...
Mike_bb's user avatar
  • 143
0 votes
0 answers
52 views

Why is almond butter so much more expensive than peanut butter?

Why is almond butter so much more expensive than peanut butter? At least this is true in the 🇺🇸, where I've seen almond butter 2× as expensive.
Geremia's user avatar
  • 471
1 vote
1 answer
88 views

What are the most common axioms to define a strict preference relation?

I am wondering which are the standard axioms with which indifference and (particularly) strict preference are usually defined. Normally, a weak preference relation for agent $i$ on a set $X$, denoted $...
EoDmnFOr3q's user avatar
1 vote
0 answers
53 views

Background courses for MSc in Finance

I'm a Mathematics bachelor student and next year I am going to pursue a 2-year MSc in Finance. In this question, as a total beginner in Finance and more generally in Economics, I'd like to get ...
Amanda Wealth's user avatar
2 votes
1 answer
41 views

Understanding balance of payments

Suppose US records exports (increase) in the current account. What would the corresponding decrease in the capital/financial account have to be? Why does there have to be a corresponding decrease in ...
Ac711's user avatar
  • 23
3 votes
1 answer
31 views

Why do states regulate home insurance rates?

With increasing damages and volatility, home insurance companies increasingly withdraw from entire states, including former low-risk states like Iowa. I was puzzled by this at first: The normal ...
Peter - Reinstate Monica's user avatar
2 votes
0 answers
41 views

Axiomatic characterisations of dictatorial social choice/welfare functions?

I am looking for axiomatic characterisations of dictatorial social choice/welfare functions; where a dictatorial social choice function is one that always picks the dictator’s favourite outcome, and a ...
EoDmnFOr3q's user avatar
3 votes
1 answer
81 views

How does Turkey have higher labour productivity than Portugal and Romania but lower GDP per capita PPP?

I avoided using nominal GDP per Capita because of Lira devaluation. Here is the labour productivity of Turkey, Portugal, Romania and some other countries (2022) https://data.oecd.org/lprdty/gdp-per-...
David's user avatar
  • 31
2 votes
1 answer
86 views

What prices do firms impose on perfect substitutes?

Let's say we have a retail firm, which sells various products. I am interested in general pricing strategy, so we could abstract from competition between firms. Among these products, the firm also ...
Athaeneus's user avatar
  • 834
3 votes
1 answer
53 views

Why can the Lagrangian Multiplier be dropped in the inverse demand function?

I'm deriving the Antras and Helpman (2004) paper. The model assumes a nested CES utility function $$ U = x_0 + \frac{1}{\mu} \sum_{j=1}^{J} X_j^\mu $$ where $X_j = \left[ \int x_j(i)^\alpha \,di \...
Hopeless Economist's user avatar
1 vote
1 answer
66 views

Finding the mixed-strategy Nash equilibrium in this game

Find the pure and mixed-strategy Nash equilibrium in this game: \begin{array}{c|cccc} P_1 \text{/} P_2 & \text{Ll} & \text{Lr} & \text{Rl} & \text{Rr} \\ \hline \text{T} & (3,2) &...
user9487's user avatar
1 vote
0 answers
38 views

About part of Romer's model. Is my math process correct?

$$\mathcal{L}=\int_{i=0}^Ap(i)L(i)di-\lambda([\int_{i=0}^AL(i)^\phi di]^{\frac{1}{\phi}}-1)\\ s.t.\int_{i=0}^{A}L(i)^{\phi}di=1 $$ $$ \begin{aligned} \frac{d\mathcal{L}}{dL}&=\int_{i=0}^{A}p(i)di-\...
Barry Alen's user avatar
2 votes
1 answer
56 views

How is it possible for a country to have both deflation and a weak currency?

As of early 2024, China has lower inflation than America, if not deflation. But the Chinese yuan is also weak right now, requiring Chinese central bank intervention in favor of the yuan to maintain ...
Betterthan Kwora's user avatar
1 vote
1 answer
41 views

Can a mixed strategy that is strictly dominant exist if there is no strictly dominant pure strategy?

Consider a simultaneous-move game with two players, 1 and 2. Player 1 does not have any pure strategy that is a strictly dominant strategy. Is it possible for player 1 to have a mixed strategy that is ...
Jovan Jezdic's user avatar
0 votes
2 answers
55 views

Why is the number of subgames in these two games different?

This game has only 1 subgame (the game itself). This game has 3 subgames. Why is it different? I don't know how to judge the number of subgames.
PiVoyager's user avatar
3 votes
4 answers
179 views

Who bears the burden of a land value tax over the long-term?

EDIT: I’m not sure if “burden” implies I’m talking about incidence on sellers/buyers but I’m not; I’m just asking about who bears the cost of the tax (as in which people - current owners, future ...
Monkle's user avatar
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