Comparisons among four proposals
| Comparison of the price of the four proposals with the original price structure | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Proposal 1 | Proposal 2 | Proposal 3 | Proposal 4 | ||||||
| Block | Original structure | Absolute value | Change in price (%) | Absolute value | Change in price (%) | Absolute value | Change in price (%) | Absolute value | Change in price (%) |
| 0–50 | 1.484 | 1.474 | −0.67 | 1.484 | – | 1.484 | – | 1.958 | 31.94 |
| 51–100 | 1.533 | 1.474 | −6.88 | 1.533 | – | 1.533 | – | 1.958 | 27.72 |
| 101–150 | 1.786 | 1.769 | −0.94 | 1.533 | −14.17 | 1.533 | −14.17 | 2.156 | 20.72 |
| 151–200 | 1.786 | 1.769 | 3.01 | 1.786 | – | 1.786 | – | 2.156 | 20.70 |
| 201–250 | 2.242 | 2.309 | −7.73 | 2.242 | – | 2.242 | – | 2.706 | 20.70 |
| 251–300 | 2.242 | 2.309 | −7.73 | 2.242 | – | 2.503 | −13.42 | 3.021 | 20.72 |
| 301–400 | 2.503 | 2.309 | 1.29 | 2.503 | – | 2.503 | – | 3.123 | 20.74 |
| 401–700 | 2.587 | 2.620 | 6.35 | 2.587 | – | 2.587 | – | 3.123 | 20.74 |
| 701+ | 2.587 | 2.751 | 6.35 | 2.587 | – | 2.587 | – | 3.482 | 20.74 |
| Comparison of the price of the four proposals with the original price structure | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Proposal 1 | Proposal 2 | Proposal 3 | Proposal 4 | ||||||
| Block | Original structure | Absolute value | Change in price (%) | Absolute value | Change in price (%) | Absolute value | Change in price (%) | Absolute value | Change in price (%) |
| 0–50 | 1.484 | 1.474 | −0.67 | 1.484 | – | 1.484 | – | 1.958 | 31.94 |
| 51–100 | 1.533 | 1.474 | −6.88 | 1.533 | – | 1.533 | – | 1.958 | 27.72 |
| 101–150 | 1.786 | 1.769 | −0.94 | 1.533 | −14.17 | 1.533 | −14.17 | 2.156 | 20.72 |
| 151–200 | 1.786 | 1.769 | 3.01 | 1.786 | – | 1.786 | – | 2.156 | 20.70 |
| 201–250 | 2.242 | 2.309 | −7.73 | 2.242 | – | 2.242 | – | 2.706 | 20.70 |
| 251–300 | 2.242 | 2.309 | −7.73 | 2.242 | – | 2.503 | −13.42 | 3.021 | 20.72 |
| 301–400 | 2.503 | 2.309 | 1.29 | 2.503 | – | 2.503 | – | 3.123 | 20.74 |
| 401–700 | 2.587 | 2.620 | 6.35 | 2.587 | – | 2.587 | – | 3.123 | 20.74 |
| 701+ | 2.587 | 2.751 | 6.35 | 2.587 | – | 2.587 | – | 3.482 | 20.74 |
| Comparison of the consumer welfare effect under the four proposals | |||||
|---|---|---|---|---|---|
| Proposal 1 | Proposal 2 | Proposal 3 | Proposal 4 | ||
| Total consumer surplus change (VND) | 39,731 | 18,591 | 17,966 | −512,169 | |
| Low | 5,525 | 2,333 | 2,264 | −62,494 | |
| Middle | 25,650 | 11,232 | 10,858 | −316,319 | |
| High | 8,556 | 5,026 | 4,844 | −133,356 | |
| Per household (VND) | |||||
| Low | 7.527 | 3.178 | 3.084 | −85.142 | |
| Middle | 8.465 | 3.707 | 3.583 | −104.396 | |
| High | 8.848 | 5.198 | 5.009 | −137.907 | |
| Comparison of the consumer welfare effect under the four proposals | |||||
|---|---|---|---|---|---|
| Proposal 1 | Proposal 2 | Proposal 3 | Proposal 4 | ||
| Total consumer surplus change (VND) | 39,731 | 18,591 | 17,966 | −512,169 | |
| Low | 5,525 | 2,333 | 2,264 | −62,494 | |
| Middle | 25,650 | 11,232 | 10,858 | −316,319 | |
| High | 8,556 | 5,026 | 4,844 | −133,356 | |
| Per household (VND) | |||||
| Low | 7.527 | 3.178 | 3.084 | −85.142 | |
| Middle | 8.465 | 3.707 | 3.583 | −104.396 | |
| High | 8.848 | 5.198 | 5.009 | −137.907 | |
Source(s): Authors' calculations
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