Questions tagged [self-study]

Questions about self-studying economics, including curriculum design, study strategies, resources, etc.

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4
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1answer
92 views

Cheap talk with mechanics

Sorry in advance for asking too many questions. I am just seeking for some minor help and check if what I'm thinking is acceptable. A customer R takes his car to the mechanic S. The mechanic can ...
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0answers
59 views

Job Market Signaling

My Solution is this Separating equilibrium High type worker chooses $e_H = e^* >0$ Low type worker chooses $e_L =0$ Firms believes that if education is $e^* >0$ then the worker is high type and ...
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1answer
92 views

Finding consistent but inefficient GMM estimate

Consider the following linear model $$y_t = x_t' \beta +u_t$$ where $t =1,...,T$ and $x_t = (x_{1t} x_{2t} ... x_{kt})'$ , $ \beta$ is $k \times 1$ vector of unknown coefficients, $u_t$ is an iid ...
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2answers
112 views

Learning Economics in Three Dimensions

I am trying to teach myself microeconomics via video series. I have a fairly good mathematics foundation, currently studying Partial Differential Equations and having gone through all the prereqs you ...
3
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1answer
34 views

BNE: Incomplete Information Cournot

Consider two risk-neutral firms that compete in quantities (Cournot). The aggregate inverse demand is given by $P(Q) = 3-Q$. Each firm can only observe its own cost. Find a symmetric BNE. The constant ...
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2answers
45 views

Rule for Number of Strategies in Bayesian Games

Is there a general rule for finding the number of strategies (denote as $S$) for each player in a Bayesian game? I think it's related to the number of types (denote as $T$) and the number of actions (...
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0answers
26 views

Cournot nash equilibrium

The market demand for a good is described by the inverse demand function $P(Q) = 120 - Q $ where $Q$ is total quantity demanded and $P(Q)$ the market price. Two firms $i =1,2$ have identical cost ...
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0answers
50 views

Better Model for Dynamic pricing - Stackelberg model or Bertrand model

Objective - I am building a dynamic pricing tool for airline tickets which will consider the competitor prices. Taking competitor price as reference, this tool will price the ticket. Also instead of ...
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0answers
27 views

Fluctuations in income

Consider the following income fluctuation problem. An agent lives for two periods, 0 and 1, and faces stochastic income in period 1. We are given this utility maximization problem: $$\text{max}\ U(c_0)...
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38 views

How to derive consumer expenditures in EMEA 14.2.5

I am working on a problem 14.2.5 from EMEA by Sydsaeter, Hammond and Strom. Consider the consumer demand problem: $$ \max_{x,y} U(x,y) = \alpha \ln(x-a) + \beta \ln(y-b) \text{ s.t. } px+qy=m \tag{*} ...
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36 views

Coming up with a self self teaching curriculum in economics?

I'm a college grad- engineer by trade and wanted to learn about economics. Since I don't know much about the subject I'm not sure exactly how to progress with learning the field. I've started with ...
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1answer
60 views

Find the set of Pareto efficient payoffs in game theory [closed]

Here I want to find Pareto efficient payoff set. The answer is (C,β), (B, β), (C, δ) But I don’t understand why? Please explain clearly this answer. Thanks a lot
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2answers
154 views

Best book to self-study microeconomics

What textbook(s) (and other resources) would you recommend to someone who wants to self-study microeconomics to an advanced (graduate) level starting from 0 (i.e. no formal background in economics)? I ...
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0answers
34 views

calculation of the real domestic return of a foreign stock

I would like to calculate the real domestic return of a foreign stock What I know Real price is $$P_{Real, t} = \frac{P_{Nominal, t}}{CPI_t}$$ where CPI is consumer price index. And I know that the ...
2
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1answer
205 views

consumer surplus decreasing

MRU has the following question on a quiz: Suppose the government forced all bread manufacturers to sell their products at a “fair price” that was half the current, free-market price. To keep it ...
4
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1answer
90 views

Stochastic AK model derivation

Consider the following version of the stochastic Ak model written as a Bellman equation: $$v(A,k)=max\ log(c)+\beta E[v(A',k')|A]$$ $$s.t\ k'+c\leq Ak$$ and non-negatitvities. $A$ is a stationary ...
2
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0answers
31 views

Stochastic AK model with uncertainty [duplicate]

Consider the following version of the Ak model:$$V^*(A_0,K_0)=max\sum\beta^t\sum P(A^t)\frac{c_t(A^t)^{1-\sigma}}{1-\sigma}$$ st$$ k_{t+1}(A^t)+c_t(A^t)\leq Ak_t(A^{t+1})$$ and non-negativities $A_t$ ...
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0answers
21 views

maximization program with a discount factor in monopoly with learning by doing

I would know something about the multiproduct monopoly. In the case with independent demands and costs dependents, it is in the case with only 1 physical good sold out of 2 periods. For example (...
0
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1answer
203 views

Why marginal benefit is decreasing as more and more pizzas are being produced?

I'm taking one of my initial courses in Economics on my own and currently reading Economics by McConnel, Brue and Flynn. On the page 13, the book is trying to explain about Optimal Allocation. They ...
0
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1answer
37 views

What is the producer surplus given the price the consumer paid + price they are willing to pay, and the marginal cost of producing the product?

Linda is willing to pay $6 for a cereal box. Linda bought a cereal box for $4. The marginal cost of producing that cereal box ...
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1answer
77 views

Why there is no supply on monopoly markets?

We learned in the class that monopoly markets do not have supply curve. Our textbook (Microeconomics and Behavior, page 388 from, R. Frank) says: A monopolist has no supply curve and it explains it ...
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0answers
40 views

Will the outcome of a game always be a Nash Equilibrium?

Consider this game between two players. This game has two Nash Equilibria: (U, C) and (D, R). Suppose we ask the players to play this game once. What should our prediction of the game's result be? If ...
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1answer
62 views

Is there a book or notes that explain all about inflation? [closed]

Is there a book or notes or papers (but for easy understanding please) that explain all about inflation? Not at a research level but student level. From what is previously needed to define and ...
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1answer
37 views

Demand and Supply Curve Shifts

I Study economics independently at Marginal Revolution University. But I am stuck with few of the very first Concepts. Those are: Demand and Supply curve Shifts in Isolation. Demand Curve Shifts: When ...
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1answer
46 views

Assumptions on preference relation

This question is from Harvard seminar problem set (Q-3 part b) https://www.studocu.com/en-us/document/harvard-university/economics/mandatory-assignments/econ2020a-14-ps01-please-give-as-much-...
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1answer
105 views

Find Pareto optimal allocations and the core for the following economies

Find Pareto optimal allocations and the core for the following economies. There are two consumers and two goods. Utility functions are $u_1(x_1,y_1)= 10x_1-(y_1-2)^2$ and $u_2(x_2,y_2) = 10y_2 − (x_2 −...
4
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1answer
117 views

Finitely repeated Prisoner’s Dilemma with switching cost

I'm doing this finitely repeated Prisoner's dilemma with switching costs but I have trouble showing the fact that $\varepsilon$ had to be $1 < \varepsilon < 2$. I do see why and that it is a ...
0
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1answer
59 views

Question on overlapping generations

My question is from over lapping generations Question is as follows I found that $$k(t+1)= \frac{\beta(1-\alpha)}{(1+\beta)(1+n)}A(t)k(t)^{\alpha}$$ How can I deal with A(t) to find the steady state $...
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1answer
55 views

Exchange economy find core

Find Pareto optimal allocations and the core for the following economies Consider an exchange economy with two agents and two goods. Let consumption sets are the nonnegative orthant. Agent 1’s utility ...
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1answer
40 views

Transitional Dynamics of consumption per capita in solow model

I can write the transitional dynamics of output per capita as follows $$y=f(k)$$ Take its derivative with respect to time t $$ \dot{y} =f’(k) \dot{k}$$ Divide it by $k/k$ $$ \dot{y} =f’(k) \frac{\dot{...
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0answers
35 views

Practical guide to Structural Equation Modeling

I am currently self-learning Structural Equation Modeling. I have studied some theory and also a bit about the software implementation, but not enough to practically conduct an SEM study. I wanted to ...
2
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1answer
98 views

Counter example for strong and weak Pareto optimality

We know that strong Pareto efficient is equivalent to weak Pareto efficient if we have continuous and strongly monotone preferences. Please give me an example which we don’t have continuous and ...
5
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1answer
87 views

Properties on conditional demand correspondence from the textbook of Mas-Colell et al

I have a question on the properties of conditional demand correspondence Let $z(w,q)$ be the conditional factor demand correspondence, i.e. the solution of the cost minimization problem \begin{align} \...
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0answers
36 views

Second welfare theorem and non-continuous preferences

Are there any monotonic and strictly convex preferences that are not continuous but the second welfare theorem does not hold for them?
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1answer
156 views

Find pareto optimal allocations

Consumer 1: $U_1(x_1,y_1)=x_1y_1$ Consumer 2:$ u_2(x_2,y_2)=min\{x_2y_2 , 4\} $ Initial endowments e1=(1,4) and e2=(4,1) I want to find Pareto optimal allocations and show its edgeworth box My ...
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1answer
137 views

Question on General Equilibrium: how to write offer curves?

QUESTION: Consider simple two-person, two-good economy in which agents’ utility functions are given by $U_1(x_{11}, x_{21}) = min\{x_{11}, x_{21}\} $, and $U_2(x_{12}, x_{22}) = min\{4x_{12}, x_{22}\}...
3
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4answers
104 views

Why should $dp_2=dm =0$ in this problem?

I am studying Essential Mathematics for Economic Analysis and in chapter 12 problem 10 there is a problem that I can solve but I do not understand why the solution works. The problem asks us to ...
0
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2answers
76 views

Math needed for economic research [duplicate]

I'm currently studying economics and am interested in getting into economic research. I'm aware of how math based economics research is. I have done some 1st math courses (probability, linear algebra, ...
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0answers
30 views

Types of Economies of Scale

Context: Delegation informed prime Minister that textile sector is working at fullest capacity due to government policies. They further said the energy package, timely refunds and other facilities had ...
1
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1answer
307 views

Finding the conditional input demand function

Find the conditional input demand function and cost function for the given production function $$f(a,b,c,d)=\min\{ a,2b\} + \max\{3c,4d\} $$ In The solution, The production function is defined as $f(x,...
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1answer
50 views

These two estimators are equal?

I have a question so basically. I have two model $$y= X_1b_1+X_2b_2+u$$ And $$X_2=y\beta_1+X_2\beta_2+v$$ I want to show $b_1=\beta_1$ Are these estimators are equivalent? $$b_1= (X_1’M_1X_1)^{-1} X_1’...
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1answer
24 views

The instrument in "The Colonial Origins of Comparative Development"

I am hoping to understand when an instrument is appropriate. For the purposes of this question, I'm considering a simplied version of the model in AJR (2000): $$\begin{aligned}\text{GDP} &\sim \...
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0answers
49 views

Best way to learn economics for an interested layperson with a mathematical background

What's a good way for a mathematically-literate layperson who's interested in seriously learning economics? I suppose the quick answer is "read a textbook", but 1) textbooks are boring, 2) ...
0
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1answer
57 views

A question from MWG 2F12

This question is from MWG if walrasian demand function is generated by a rational preference relation then it must satisfy weak axiom. I cannot prove this statement. How can I do?Thanks alot.
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1answer
57 views

IS LM CURVE QUESTİON

For keynesian model, Describe how, if at all, each of the following development affect the IS and/or the LM curve, and the equilibrium (r; Y ): Investment demand becomes less sensitive to the interest ...
1
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1answer
24 views

Keynesian model functions

In The Keynesian economy, I have the following model Here, the production function $F(N,K) = Y/K = A(N/K)^{1.10}$ and by the labor demand function $F_N(K,N)= N/K= b_0(w/p)^{b_1}$. right? That is, ...
2
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1answer
157 views

Proof on weak axiom of revealed preferences

I read the following statement. “ A utility maximizer with strictly convex and strongly monotonic preferences satisfies weak axiom of revealed preferences.” How can I prove or show this? I cannot ...
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0answers
21 views

Question on Dichotomous system

In The Classic economy, we consider the following macroeconomic model $$Y=F(K,N)$$ where $F_N>0$, $F_K>0$, $F_{KK}, F_{NN}<0$ and $F_{NK}>0$ $$F_N(K/N)=w/p$$ The labor supply function is $$...
4
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1answer
123 views

Determining subgame perfect Nash equilibriums

Question Three houses share exclusive access to a beach, but it is dirty due to trash washed ashore. A beach clean-up exercise costs $100$, but has a value of $200$ to each household. A clean-up ...
2
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1answer
90 views

How to calculate the ideal maintaining time of a machine?

I have a question regarding a cost calculation problem: I have the following curve, which shows, that with increasing number of tasks without maintaining a machine, the error probability for the ...

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