<u>Table 3:</u> Means and Medians Analysis in Levels

|<br>Variable|<br>stats||<br>Mean|||Diff in Levels||T-stat (<br>in mean|Z-stat) for di<br>s(medians)|fference<br>in Levels|
|---|---|---|---|---|---|---|---|---|---|---|
|||Preprivat<br>(1)|Transition<br>(2)|Postprivat<br>(3)|(2)-(1)<br>(4)|(3)-(2)<br>(5)|(3)-(1)<br>(6)|(2)-(1)<br>(7)<br>|(3)-(2)<br>(8)<br>|(3)-(1)<br>(9)<br>|
|**Outputs**|||||||||||
|Residential|mean|85.83|102.26|120.48|17.32|17.11|35.16|-16.209***|-17.493***|-16.809***|
|Connections|p50<br>|85.94<br>|102.00<br>|119.59<br>|17.11<br>|16.55<br>|34.33<br>|-7.843***|-7.306***|-7.459***|
||sd|9.20|2.53|10.04|9.68|8.76|16.94||||
||N|82|116|74|82|74|71||||
|MWH sold|mean|82.29|102.67|119.22|20.82|15.60|36.74|-13.119***|-11.882***|-7.554***|
|per year|p50|82.59|101.20|117.13|19.88|15.17|34.60|-7.399***|-6.945***|-6.128***|
||sd|14.11|6.44|21.12|14.28|17.77|25.69||||
||N|81|116|74|81|74|69||||
|**Inputs**|||||||||||
|Number of|mean|162.71|100.65|86.59|-61.37|-14.27|-78.19|8.949***|8.678***|5.432***|
|Employees|p50|147.46|100.00|86.17|-48.38|-14.76|-63.63|6.252***|5.903***|5.057***|
||sd|54.42|6.76|23.63|52.22|20.18|63.71||||
||N|58|116|59|58|59|50||||
|**Efficiency**|||||||||||
|Connections|mean|60.24|103.33|147.42|45.38|40.83|88.62|-14.738***|-13.344***|-9.334***|
|per employee|p50|59.90|100.00|135.26|44.65|32.10|88.86|-6.543***|-6.093***|-6.438***|
||sd|18.65|9.86|42.10|23.25|33.31|46.49||||
||N|57|116|58|57|58|49||||
|GWH per|mean|58.56|103.97|145.09|47.50|37.64|86.27|-17.097***|-11.362***|-6.901***|
|employee|p50|59.68|100.00|129.76|46.04|26.76|71.15|-6.567***|-6.093***|-6.182***|
||sd|18.58|11.98|53.86|20.98|41.54|53.15||||
||N|57|116|58|57|58|49||||
|Distributional|mean|112.19|98.73|87.78|-12.92|-9.75|-25.14|3.658***|4.657***|3.515***|
|losses|p50|104.37|100.00|85.34|-6.13|-11.06|-19.93|3.268***|4.272***|3.341***|
||sd|2696|733|2603|2714|2112|3779||||
||N|.<br>59|.<br>116|.<br>58|.<br>59|.<br>58|.<br>49||||
|**Quality**|||||||||||
|Duration of|mean|134.49|100.34|72.42|-30.61|-25.32|-41.34|3.250***|2.687***|3.782***|
|Interruptions|p50|123.37|100.00|65.42|-24.11|-30.41|-34.37|3.477***|3.143***|4.019***|
|per year|sd|67.57|20.00|42.58|57.28|41.80|75.35||||
|per consumer|N|37|116|39|37|39|24||||
|Frequency of|mean|132.59|98.63|82.71|-34.90|-13.65|-31.66|4.256***|1.300|1.078|
|Interruptions|p50|119.54|100.00|67.96|-21.20|-29.20|-32.86|3.809***|3.571***|4.326***|
|per year|sd|57.83|13.77|93.00|49.88|79.05|119.29||||
|<br>per consumer|N|37|116|39|37|39|24||||
|**Coverage**|||||||||||
|Residential|mean|94.93|101.17|110.66|6.93|8.67|16.46|-6.886***|-8.162***|-8.333***|
|Connections<br>|p50<br>|95.35<br>|100.00<br>|108.92<br>|5.60<br>|7.62<br>|14.16<br>|-6.016***|-6.110***|-6.323***|
|per 100 HHs|sd|7.91|2.22|10.09|8.42|8.26|15.09||||
||N|70|116|63|70|63|56||||
|**Prices**|||||||||||
|Avg Tariff per|mean|106.24|98.48|94.87|-9.49|-2.88|-9.91|3.305***|2.808***|1.313*|
|<br>residential GWH|p50|97.85|100.00|95.61|-0.09|-1.38|-16.37|2.437**|2.690***|1.702*|
|(in dollars)|sd|23.68|7.52|24.63|23.85|18.73|26.18||||
||N|69|116|73|69|73|55||||
|Avg Tariff per|mean|91.77|100.81|109.61|9.21|8.46|17.90|-5.164***|-5.143***|-5.067***|
|<br>residential GWH|p50|88.27|100.00|107.07|15.25|4.64|24.26|-4.774***|-4.181***|-4.643***|
|(in real local|sd|12.83|4.97|18.59|14.81|14.27|25.81||||
|currency)|N|69|116|73|69|73|55||||

* significant at 10%; ** significant at 5%; *** significant at 1%

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