Toolkit for Empirical Workflows in Stata

corp_fin is a collection of Stata commands designed to streamline common tasks in empirical corporate finance research. The goal is simple: automate the repetitive processes such as running regressions, testing coefficients, doing univariate analyses, while producing clean, ready-to-use output.

This package started as a set of practical solutions to two recurring needs to simplify my work:
(1) moving quickly from a model setup to a presentable output table with minimal code, and
(2) performing structured coefficient-level analysis & output using concise and consistent commands.

The latest version: github.com/evanhaozhao/corp-fin-ado-toolkit

Modules

• Last modified: April 19, 2025

regx

Command mainly supports:

• regress, xtreg, reghdfe, coefplot, tobit, poisson, and ppmlhdfe
• Multiple dependent and independent variables
• Rotating independent variables or controls
• Interaction and dynamic event-study terms
• Assessing and reporting table overall significance
• Exporting estimates in row-based format for further processing
• High-dimensional fixed effects
• Clustered standard errors
• Custom titles, notes, and export folders

eqx

Command for exporting coefficient equality test. It supports:

• Within-model tests, such as comparing x1 and x2
• Cross-group comparisons using a categorical variable
• Between-model comparisons

sumx

Command for exporting summary statistics and t-test tables. Main features include:

• One-sample and two-sample t-tests
• Grouped summaries using a categorical variable
• Presentation-style output with means, medians, differences, and p-values

Installation

To install or update the package, run the following in Stata:

net install corp_fin, from(https://raw.github.com/evanhaozhao/corp-fin-ado-toolkit/main) replace

Help Files

In Stata, type:

help regx
help eqx
help sumx

These commands display the syntax and list of options.

Notes on Usage

• To specify standard error clustering, define a global variable clustervar before using regx or eqx. If this is not set, standard errors default to robust.
• To control the output directory for exported tables, define a global dir_table_flow. The current output formats include .csv and .rtf.