From: Are migrants in large cities underpaid? Evidence from Vietnam
Variables | X nm | X m | β nm | β m | (X nm − X m)* ((β nm + β m)/2) | (β nm − β m)* ((X nm + X m)/2) | Contrition of X (%) | Contrition of β (%) |
---|---|---|---|---|---|---|---|---|
Age | 33.592*** | 25.996*** | 0.0728*** | 0.0382*** | 0.4216*** | 1.0336** | 107.46*** | 263.45** |
 | [0.251] | [0.648] | [0.0098] | [0.0138] | [0.0754] | [0.5042] | [20.35] | [137.03] |
Age squared | 1244.60*** | 781.70*** | −0.0009*** | −0.0006*** | −0.3543*** | −0.3615 | −90.30*** | −92.14 |
 | [19.25] | [42.61] | [0.0001] | [0.0002] | [0.0649] | [0.2348] | [17.96] | [62.54] |
Sex (male = 1; female = 0) | 0.5353*** | 0.4870*** | 0.2197*** | 0.2229*** | 0.0107 | −0.0017 | 2.72 | −0.42 |
 | [0.0122] | [0.0346] | [0.0251] | [0.0461] | [0.0084] | [0.0276] | [2.11] | [7.14] |
Never married (yes = 1) | 0.3327*** | 0.6479*** | −0.1041*** | −0.1873** | 0.0459*** | 0.0408 | 11.71*** | 10.40 |
 | [0.0112] | [0.0323] | [0.0298] | [0.0937] | [0.0170] | [0.0504] | [4.72] | [13.28] |
Urban (urban = 1; rural = 0) | 0.7575*** | 0.7398*** | 0.0935*** | 0.0885 | 0.0016 | 0.0038 | 0.41 | 0.97 |
 | [0.0093] | [0.0306] | [0.0243] | [0.0546] | [0.0031] | [0.0446] | [0.81] | [11.49] |
Hanoi (yes = 1) | 0.3409*** | 0.3461*** | −0.0785*** | −0.0526 | 0.0003 | −0.0089 | 0.09 | −2.27 |
 | [0.0099] | [0.0299] | [0.0258] | [0.0499] | [0.0022] | [0.0195] | [0.56] | [5.02] |
Primary | 0.1184*** | 0.2534*** | 0.0609 | 0.1085 | −0.0114 | −0.0089 | −2.91 | −2.26 |
 | [0.0082] | [0.0295] | [0.0673] | [0.0823] | [0.0083] | [0.0201] | [2.18] | [5.21] |
Lower secondary | 0.2401*** | 0.3719*** | 0.1508** | 0.1470* | −0.0196** | 0.0012 | −5.00** | 0.29 |
 | [0.0103] | [0.0307] | [0.0627] | [0.0799] | [0.0085] | [0.0322]** | [2.21] | [8.39] |
Upper secondary | 0.2880*** | 0.2434*** | 0.3250*** | 0.2626** | 0.0131 | 0.0166 | 3.34 | 4.23 |
 | [0.0104] | [0.0281] | [0.0634] | [0.1041] | [0.0098] | [0.0328] | [2.53] | [8.47] |
Post secondary | 0.2968*** | 0.0454*** | 0.8917*** | 0.9052*** | 0.2259*** | −0.0023 | 57.58*** | −0.59 |
 | [0.0106] | [0.0107] | [0.0670] | [0.1367] | [0.0258] | [0.0259] | [7.65] | [6.68] |
Constant | Â | Â | 6.1056*** | 6.7598*** | Â | Â | Â | Â |
 |  |  | [0.1796] | [0.2509] |  |  |  |  |
Observations | Â | Â | 2008 | 566 | Â | Â | Â | Â |
R-squared in regression | Â | Â | 0.39 | 0.30 | Â | Â | Â | Â |
Decomposition | Â | Â | Â | Â | Â | Â | Â | Â |
 | ln(Y nm) − ln(Y m) | Contrition of X | Contrition of β | Contrition of α | Contrition of β and α |  |  | |
Absolute | 0.3923*** | 0.3339*** | 0.7127** | −0.6542** | 0.0585* |  |  |  |
 | [0.0296] | [0.0274] | [0.2999] | [0.3087] | [0.0330] |  |  |  |
Percentage | 100*** | 85.10*** | 181.66** | −166.76** | 14.90* |  |  |  |
 | [0] | [7.85] | [81.02] | [83.69] | [7.85] |  |  |  |