Econometrics or machine learning. I explain which each tool is appropriate, and survey the issues and tools involved in establishing causal relationships.
Market failure occurs when the free market allocation of resources is inefficient and does not maximize societal welfare. There are several types of market failure, including negative externalities where production or consumption impose costs on third parties, positive externalities where benefits are not fully captured, lack of public goods provision, overuse of common resources, asymmetric information, and abuse of monopoly power. Government intervention may be needed to correct market failures and achieve a socially optimal outcome where marginal social costs equal marginal social benefits.
Ragui Assaad- University of Minnesota
Caroline Krafft- ST. Catherine University
ERF Training on Applied Micro-Econometrics and Public Policy Evaluation
Cairo, Egypt July 25-27, 2016
www.erf.org.eg
The document discusses key concepts in probability and statistics. It introduces:
- Probability as obtaining likelihoods of events given parameters or proportions, while statistics obtains parameters given a sample.
- Bayesian and frequentist perspectives on probability. Bayesians see it as a degree of belief while frequentists see it as measuring frequency.
- Common probability distributions like the binomial and Poisson distributions.
- Concepts like expected value, variance, and properties of probability distribution functions.
Reporting a two sample z test for proportionsKen Plummer
The document provides a template for reporting the results of a two-sample z-test for proportions. It includes an example comparing the proportion of birth defects between residents exposed to contaminated well water (16 defects from 414 births, or 4%) and residents not exposed (3 defects from 228 births). The z-test results show residents exposed to contaminated water had a statistically significantly higher rate of birth defects (z = 2.35, p = .001).
1. The document discusses demand functions and how they relate an individual's optimal consumption levels of goods (x1, x2, etc.) to prices and income.
2. It explains the concepts of substitution and income effects that occur when prices or income change. When prices change, individuals substitute toward the now-relatively cheaper good (substitution effect) and also adjust consumption based on the change in purchasing power (income effect).
3. Whether a good is normal or inferior determines whether the substitution and income effects reinforce or work against each other when the good's price changes.
Principles of Microeconomics Midterm 1 "Cheat Sheet"Laurel Ayuyao
Definitions and charts for microeconomics; Topics include: trade, opportunity cost, shifts in supply and demand, consumer and producer surplus, etc. (Made for ECON 10010 at University of Notre Dame)
- The document discusses the method of ordinary least squares (OLS) for estimating parameters in a linear regression model.
- OLS chooses parameter estimates that minimize the sum of squared residuals, providing a better fit than minimizing the sum of residuals alone.
- The normal equations are derived and solved to obtain unique OLS estimates of the parameters β1 and β2. These point estimates depend only on the sample data.
- OLS regression lines pass through the sample means and have mean estimated and actual Y values equal, with mean residuals equal to zero.
Types of Market Failure content slideshow. Designed for the Economic A level qualification. Can be used in revision and in class.
Subtopics
Intro to Market Failure
Different Types of Market Failure
Market failure occurs when the free market allocation of resources is inefficient and does not maximize societal welfare. There are several types of market failure, including negative externalities where production or consumption impose costs on third parties, positive externalities where benefits are not fully captured, lack of public goods provision, overuse of common resources, asymmetric information, and abuse of monopoly power. Government intervention may be needed to correct market failures and achieve a socially optimal outcome where marginal social costs equal marginal social benefits.
Ragui Assaad- University of Minnesota
Caroline Krafft- ST. Catherine University
ERF Training on Applied Micro-Econometrics and Public Policy Evaluation
Cairo, Egypt July 25-27, 2016
www.erf.org.eg
The document discusses key concepts in probability and statistics. It introduces:
- Probability as obtaining likelihoods of events given parameters or proportions, while statistics obtains parameters given a sample.
- Bayesian and frequentist perspectives on probability. Bayesians see it as a degree of belief while frequentists see it as measuring frequency.
- Common probability distributions like the binomial and Poisson distributions.
- Concepts like expected value, variance, and properties of probability distribution functions.
Reporting a two sample z test for proportionsKen Plummer
The document provides a template for reporting the results of a two-sample z-test for proportions. It includes an example comparing the proportion of birth defects between residents exposed to contaminated well water (16 defects from 414 births, or 4%) and residents not exposed (3 defects from 228 births). The z-test results show residents exposed to contaminated water had a statistically significantly higher rate of birth defects (z = 2.35, p = .001).
1. The document discusses demand functions and how they relate an individual's optimal consumption levels of goods (x1, x2, etc.) to prices and income.
2. It explains the concepts of substitution and income effects that occur when prices or income change. When prices change, individuals substitute toward the now-relatively cheaper good (substitution effect) and also adjust consumption based on the change in purchasing power (income effect).
3. Whether a good is normal or inferior determines whether the substitution and income effects reinforce or work against each other when the good's price changes.
Principles of Microeconomics Midterm 1 "Cheat Sheet"Laurel Ayuyao
Definitions and charts for microeconomics; Topics include: trade, opportunity cost, shifts in supply and demand, consumer and producer surplus, etc. (Made for ECON 10010 at University of Notre Dame)
- The document discusses the method of ordinary least squares (OLS) for estimating parameters in a linear regression model.
- OLS chooses parameter estimates that minimize the sum of squared residuals, providing a better fit than minimizing the sum of residuals alone.
- The normal equations are derived and solved to obtain unique OLS estimates of the parameters β1 and β2. These point estimates depend only on the sample data.
- OLS regression lines pass through the sample means and have mean estimated and actual Y values equal, with mean residuals equal to zero.
Types of Market Failure content slideshow. Designed for the Economic A level qualification. Can be used in revision and in class.
Subtopics
Intro to Market Failure
Different Types of Market Failure
1. The document discusses the nature of regression analysis, which involves studying the dependence of a dependent variable on one or more explanatory variables, with the goal of estimating or predicting the average value of the dependent variable based on the explanatory variables.
2. It provides examples of regression analysis, such as studying how crop yield depends on factors like temperature, rainfall, and fertilizer. It also distinguishes between statistical and deterministic relationships, and notes that regression analysis indicates dependence but does not necessarily imply causation.
3. Regression analysis differs from correlation analysis in that it treats the dependent and explanatory variables asymmetrically, with the goal of prediction rather than just measuring the strength of the linear association between variables.