| Summary: | 碩士 === 國立成功大學 === 經濟學系 === 107 === This study investigate the relationship between flooding and income during Typhoon Morakot and Typhoon Fanapi. The literature had showed that the low-income group faces a large flooding risk. The reason is that the house price will fell where the areas was flooded, but the high-income people will move out for their safety. Then the low-income people were attracted by the low house price in the disaster-prone area and moved into those areas, eventually facing a larger flooding risk. However, not only the flooding changes the distribution of people who have various income, but people use their income to change the probability of flooding. For example, though the construction of public flood protection. Some paper confirmed that the rich people use their political power to benefit themselves by forming public policies and resource allocation.
This study used the open data of the map of the village and the terrain in the southern Taiwan, the house price, the income statistics, the rainfall distribution during Typhoon Morakot and Typhoon Fanapi, and the flooding during those Typhoon. The Logit model of flooding and the Propensity Score Matching (PSM)were adopted to control other factors of flooding and analyze the probability of flooding within areas where people have various income. We found that the flooding probability of the high-income areas were significantly lower than the low-income areas. The reason could be political power of high-income people.
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