OLS Estimations of Panel Changes, 1980–2018
| Baseline Panel Estimation [OVER1] (1) | Including Control for Expected Overage from Simulations (2) | Including Control for Linear Time Trend in 1980 Overage Level (3) | |
|---|---|---|---|
| Panel A: Baseline Estimation without Controls | |||
| Inverse of log ethnic group size (small groups have larger values) | 0.970*** | 0.568*** | 0.207** |
| (0.264) | (0.186) | (0.084) | |
| Isolation of ethnic group | 0.342* | 0.242** | 0.197** |
| (0.190) | (0.119) | (0.093) | |
| Ethnic group and year FE | Yes | Yes | Yes |
| Adjusted R-squared value | 0.484 | 0.593 | 0.735 |
| Panel B: Including Controls for Ethnic Group’s Traits | |||
| Inverse of log ethnic group size (small groups have larger values) | 0.948*** | 0.501** | 0.258* |
| (0.285) | (0.208) | (0.151) | |
| Isolation of ethnic group | 0.300* | 0.228* | 0.165* |
| (0.179) | (0.119) | (0.092) | |
| Ethnic group and year FE | Yes | Yes | Yes |
| Adjusted R-squared value | 0.500 | 0.602 | 0.742 |
Notes: See Table 1. Estimations describe the OLS panel relationship between industry concentration for ethnic entrepreneurship and ethnic group size and in-marriage isolation from 1980, 1990, 2000, 2010, and 2018 combining censuses and the American Community Survey. The analysis considers 107 ethnic groups with full panel data, for 535 observations. Regressions are weighted by log ethnic group counts and report standard errors clustered by ethnic group. Column 2 adds a control for the expected overage level for an ethnicity and year based on 100 Monte Carlo simulations with the number of observations in the sample. Column 3 adds a linear time trend in the 1980 overage level.