Title page 1

Contents 1

Abstract 2

1. Introduction 4

2. Literature Review and Country Context 6

3. Methodology and Data 9

3.1. Data 9

3.2. Empirical Strategy 12

4. Empirical Results 14

4.1. Baseline Regressions 14

4.2. Non-Linear Effects and Inverted U-Shape 15

4.3. Sectoral and Firm Heterogeneity 18

4.4. Robustness Checks 19

5. Policy Discussion 21

6. Conclusion 22

References 24

7. Annex 27

Table 1. Average Commute Duration (min) by District 8

Table 2. Summary Statistics 11

Table 3. Estimation of Agglomeration Impacts on Firm Productivity 15

Table 4. Fixed-Effects Estimation of Agglomeration Impacts on Firm Productivity by Sector 19

Figure 1. Labor Productivity in Ulaanbaatar 5

Figure 2. Population distribution and urban services in Ulaanbaatar's core districts 9

Figure 3. Localization and Urbanization correlation with TFP estimation 11

Figure 4. Inverted U-shaped Curve of Over-Agglomeration 17

Table A1. Fixed-Effects Estimation of Agglomeration Impacts on Firm Productivity by Firm Size 27

Table A2. Robustness Check: Alternative Agglomeration Measures (Firm Counts) 27

Table A3. Robustness Check: Dependent Variable as Labor Productivity 28

Table A4. Robustness Check: Urbanization and Localization as Distance-Based Metrics 28