Category Archives: Econometrics

Omitted Variable Bias: Explaining the Bias

In the previous two posts on the Omitted Variable Bias (Post 1 and Post 2), we discussed the hypothetical case of finding out what determines the price of a car. In the hypothetical example, we assumed, for simplicity, that the … Continue reading

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Omitted Variable Bias: Understanding the Bias

The second part of the series on the Omitted Variable Bias intends to increase the readers understanding of the bias. Let’s continue with the example from the Introduction. Let the dependent variable be the price of a car and the … Continue reading

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Omitted Variable Bias: Introduction

The omitted variable bias is a common and serious problem in regression analysis. Generally, the problem arises if one does not consider all relevant variables in a regression. In this case, one violates the first assumption of the assumption of … Continue reading

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Clustered Standard Errors in STATA

In STATA clustered standard errors are obtained by adding the option cluster(variable_name) to your regression, where variable_name specifies the variable that defines the group / cluster in your data. The summary output will return clustered standard errors. Here is the syntax:  regress … Continue reading

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Julia-R Cheatsheet – Mathematical Operations

Mathematical Operations What are the commands for the most important mathematical operations in Julia and R? The following table translates the most common Julia commands into R language.

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Julia-R Cheatsheet – Accessing Vector/Matrix Elements

Accessing Vector/Matrix Elements How to access vector and matrix elements in Julia and R? The following table translates the most common Julia commands into R language.

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Julia-R Cheatsheet – Manipulating Vectors and Matrices

Manipulating Vectors and Matrices How to manipulate vectors and matrices in Julia and R? The following table translates the most common Julia commands into R language.

Posted in Computing and Others, Econometrics, Statistic | Tagged , , , , , , , | 5 Comments