開徵水權費對養殖業者之影響─以彰化縣大城鄉為例

Effects of imposing a block tariff system on aquaculture farmers-a case study of Da-Cheng Township, Chang-Hua County

10.6181/agec.2018.60.01

廖肇寧(Liao Chao-Ning)；葉子瑄(Yeh Tzu-Hsuan)

水權費 ； 地下水 ； 養殖漁業 ； 大城鄉 ； Water right fee ； Groundwater ； Aquaculture ； Da-cheng county

農業與經濟

60期（2018 / 06 / 01）

1 - 34

繁體中文

臺灣西南沿海地區因養殖業者長期超額抽取地下水，導致該地區飽受地層下陷之苦，本研究以彰化縣大城鄉的蜆養殖業為例，探討政府利用區間型遞增的水權費制度來管理地下水使用時，該管制對於養殖業者的抽水行為與利潤將產生何種影響？本研究除可提供業者一個最適的決策模式外，亦可作為政府在執行水權費政策之參考。實證研究結果顯示，目前臺灣所規劃之水權費率仍太低，不足以降低大部分養殖業者使用地下水意願，僅少數養殖規模較小業者會為了面對較低費率而減少地下水的抽取，此外，政府若能調高大用水戶費率，不僅可使地下水總抽水量大幅下降，也可降低當地多數以小農生產型態為主的業者之影響，較利於水權費政策的推動。

In Taiwan, many severe land subsidence areas are mostly caused by aquaculture farmers' over-pumping groundwater. Therefore, to slow down the situation of subsidence, we should regulate the use of groundwater. Using Da-Cheng township as an example, this study tries to analyze how a proposed block tariff system on groundwater use might affect the aquaculture farmers' profits and behavior. The research not only offers the farmers an optimal decision making framework but also provides our government useful policy implications on how to adjust the block tariff system. Our empirical results show that the current proposed water tariff rates will only cause some small farmers reduce their groundwater use. In order to reduce the farmers’ dependence on the groundwater, the government should consider raise the rates on higher groundwater use blocks. Doing so would significantly lower the amount of groundwater extraction. In addition, adjusting the tariff rates at higher blocks only affects a very small portion of farmers in this area. This will in turn make the regulation policy more feasible.

1. 李堅明、黃宗煌(2000)。在地下水權交易制度下之用水決策與取水許可證之價格分析。農業經濟半年刊，67，71-96。
   連結：
2. 廖肇寧、陳秉宏(2017)。一個考量外部性的補貼政策與政府現行治水政策之成效比較—以彰化縣大城鄉為例。應用經濟論叢，101，149-189。
   連結：
3. 中央氣象局，（瀏覽日期︰2016 年5 月19 日）https://www.cwb.gov.tw/V7/climate/monthlyData/mD.htm
4. 大城鄉鄉公所網站，（瀏覽日期︰2016 年4 月15 日）http://town.chcg.gov.tw/dacheng/00home/index8.asp
5. Baerenklau, K. A.,Schwabe, K. A.,Dinar, A.(2014).The Residential Water Demand Effect of Increasing Block Rate Water Budgets.Land Economics,90(4),683-699.
6. Bar-Shira, Z.,Finkelshtain, I.,Simhon, A.(2006).Block-Rate versus Uniform Water Pricing in Agriculture: An Empirical Analysis.American Journal of Agricutural Economics,88(4),986-999.
7. Billings, R. B.(1982).Specification of Block Rate Price Variables in Demand Models.Land Economics,58(3),386-394.
8. Billings, R. B.,Agthe, D. E.(1980).Price Elasticities for Water: A Case of Increasing Block Rates.Land Economics,56(1),73-84.
9. Borenstein, S. (2009), “To What Electricity Price Do Consumers Respond? Residential Demand Elasticity under Increasing-Block Pricing,” Working paper.
10. Brown, G.,Deacon, R.(1972).Economic Optimization of a Single-Cell Aquifer.Water Resources Research,8(3),557-564.
11. Burt, O. R.(1964).Optimal Resource Use Over Time with an Application to Ground Water.Management Science,11(1),80-93.
12. Chicoine, D. L.,Deller, S. C.,Ramamurthy, G.(1986).Water Demand Estimation under Block Rate Pricing: A Simultaneous Equation approach.Water Resource. Research,22(6),859-863.
13. Heim, B. T.,Meyer, B. D.(2004).Work Costs and Nonconvex Preferences in the Estimation of Labor Supply Models.Journal of Public Economics,88(11),2323-2338.
14. Hewitt, J. A.,Hanemann, W. M.(1995).A Discrete/Continuous Choice Approach to Residential Water Demand under Block Rate Pricing.Land Economics,71(2),173-192.
15. Hotelling, H. (1931), “The Economics of Exhaustible Resources,” Journal of Political Economy, 39(2), 137-175.
16. Howe, C. W.(1982).The Impact of Price on Residential Demand: Some New Insights.Water Resources Research,18(4),713-716.
17. Hung, M. F.,Huang, T. H.(2015).Dynamic Demand for Residential Electricity in Taiwan under Seasonality and Increasing-Block Pricing.Energy Economics,48,168-177.
18. Jones, C. V.,Morris, J. R.(1984).Instrumental Price Estimates and Residential Water Demand.Water Resources Research,20(2),197-202.
19. Liao, C. N.,Tsai, H. W.(2016).Modeling of a Block Tariff System for Groundwater Regulation.Natural Resource Modeling,29(4),520-537.
20. Ma, X.,Zhang, S.,Mu, Q.(2014).How Do Residents Respond to Price under Increasing Block Rates? Evidence from Experiments in Urban Residential water Demand in Beijing.Water Resources Management,28(14),4895-4909.
21. Manning, R.,Gallagher, D.(1982).Optimal Water Pricing and Storage: The Effect of Discounting.Water Resources Research,18(1),65-70.
22. Martinez-Espineira, R.(2003).Estimating Water Demand under Increasing- Block Tariffs Using Aggregate Data and Proportions of Users Per Block.Environment and Resource Economics,26(1),5-23.
23. Miyawakia, K.,Omorib, Y.,Hibikic, A.(2016).Exact Estimation of Demand Functions under Block-Rate System.Econometric Reviews,35(3),311-343.
24. Riley, J. G,Scherer, C. R.(1979).Optimal Water Pricing and Storage with Cyclical Supply and Demand.Water Resources Research,15(2),233-239.
25. Ruijs, A.(2009).Welfare and Distribution Effects of Water Pricing Policies.Environment and Resource Economics,43(2),161-182.
26. Shanthi, N.,Hanemann, W. M.(2011).Does Marginal Price Matter? A Regression Discontinuity Approach to Estimating Water Demand.Journal of Environmental Economics and Management,61(2),198-212.
27. Sibly, H.,Tooth, R.(2014).The Consequences of Using Increasing Block Tariffs to Price Urban Water.Australian Journal of Agricultural and Resource Economics,58(2),223-243.
28. van Soest, A.,Das, M.,Gong, X.(2002).A Structural Labour Supply Model with Flexible Preferences.Journal of Econometrics,107(1-2),345-374.
29. Zhao, R.,Chen, S.(2008).Fuzzy Pricing for Urban Water Resources: Model Construction and Application.Journal of Environmentl Management,88(3),458-466.
30. 中華民國航空測量與遙感探測學會(2004)。漁業署補助研究計畫漁業署補助研究計畫,台北:中華民國航空測量與遙感探測學會。
31. 行政院主計處（2011），《99 年農林漁牧業普查》，台北：行政院主計處。
32. 行政院主計處（2017），《2016 年工商普查統計》，台北：行政院主計處。
33. 法務部(2017)。法務部（2017），《全國法規資料庫》。http://law.moj.gov.tw/LawClass/LawAll.aspx?PCode。http://law.moj.gov.tw/LawClass/LawAll.aspx?PCode=J0110001
34. 陳獻、梁榮元、賴國興、陳蘭香、簡文煥(1998)。合理養殖用水量之現況調查分析（第三年）。桃園:農業工程研究中心。
35. 黃宗煌、江振南、王家興(1997)。經濟部水利署委託研究計畫經濟部水利署委託研究計畫,新北市:台灣綜合研究院。
36. 經濟部水利司(1997)。水權費率之訂定及其經濟問題之研究 II。台北:經濟部水利司。
37. 經濟部水利署(2016)。經濟部水利署（2016），《彰化地區水準測量成果表》，台北，經濟部水利署。
38. 經濟部水資源局(1996)。水權費費率之訂定及其經濟問題之研究。桃園市:經濟部水資源局。
39. 經濟部水資源局(1995)。經濟部水資源局（1995），『健全水權管理實施方案』，台北。
40. 彰化縣主計處（2014），《2013 彰化縣統計要覽》。http://www.chcg.gov.tw/accounting/07static/static01.asp?cate_id=15。
41. 漁業署（2005），《2004 漁家經濟調查報告報》，高雄：漁業署。
42. 漁業署（2011），《2010 漁家經濟調查報告報》，高雄：漁業署。
43. 漁業署（2016），《2012-2016 年漁業統計年報》，高雄：漁業署。
44. 劉聰桂(1996)。濁水溪沖積扇之地下水資源—碳十四與氚定年／示踨研究。濁水溪沖積扇地下水及水文地質研討會論文集，台北:
45. 賴慈華、劉平妹、袁彼得、江崇榮(1996)。濁水溪南岸平原之晚第四紀地下水質。濁水溪沖積扇地下水及水文地質研討會論文集，台北: