Banjir besar melanda Kota Barabai pada bulan juni tahun 2013, dimana kejadian ini mengakibatkan kerusakan di sempadan sungai dan banjir menggenangi Kota Barabai. Curah hujan dan ketinggian muka air Sungai Barabai pada saat kejadian banjir tersebut sempat terekam oleh Pos Automatic Water Level Recorder (AWLR) Baruh Batung yang terletak di Kecamatan Hantakan Kabupaten Hulu Sungai Tengah. Dalam hal ini, Pemerintah Kabupaten Hulu Sungai Tengah berencana untuk membangun Bendungan Pancur Hanau di Sungai Barabai sehingga diharapkan dapat mereduksi debit banjir di Kota Barabai. Kalibrasi koefisien pengaliran dan debit banjir pada bulan Juni tahun 2013 sangat diperlukan dalam desain Bendungan Pancur Hanau dan penentuan ketinggian muka air sebagai peringatan dini bahaya banjir. Metode yang digunakan untuk menentukan koefisien pengaliran menggunakan persamaan Dr. Kawakami. Dalam kalibrasi debit banjir pada DAS Barabai menggunakan metode analisis hidrolika dan analisis hidrologi. Metode penentuan ketinggian muka air sebagai peringatan dini bahaya banjir menggunakan penelusuran banjir di atas pelimpah. Hasilnya koefisien pengaliran pada periode ulang 100 tahun sebesar 0,895 dan debit banjir yang setara pada bulan juni tahun 2013 di DAS Barabai sebesar 605,64 m3/dt. Ketinggian muka air banjir di atas Pelimpah Bendungan Pancur Hanau sebagai peringatan dini bahaya banjir untuk kondisi siaga 1, siaga 2 dan siaga 3 masing-masing sebesar 1,55 m, 1,65 m dan 1,78 m. Dengan adanya pembangunan Bendungan Pancur Hanau di Sungai Barabai, maka reduksi debit banjir Q100, Q1000 dan QPMF masing-masing sebesar 11,70%, 11,19% dan 9,75%.

Indonesia is one of the countries with the largest population in the world, implicating the higher energy needs for consumption. LPG is one of the most important energies consumed by the majority of Indonesians since 2008. There is a programme for LPG in Indonesia, namely the LPG subsidy price. However, it is not implemented accurately in order to keep Indonesians, particularly those living below the poverty line able to purchase LPG. The purpose of this research is to determine the relationship between the economic price of LPG and poverty, as well as the subsidy removal compensation in Indonesia. Vector Auto Regression (VAR) first difference was applied in this research, and the findings show that statistically LPG economy prices have a unilateral relationship with a significant impact on poverty. Two subsidies removal compensation scenarios result shows that approximately subsidy of minimum IDR 52 thousand per month will keep the poor beneficiaries just above the poverty line. There is a potential government saving per year for LPG subsidies removal.

Cileuksa is one of the developing villages in West Java- Indonesia, with local biological resources that have not been optimally promoted. To discover the business potential of existing resources at Desa Cileuksa, a survey of business potential was conducted. The survey involved 32 respondents (adult) from 14 hamlets. The activity was divided into 2 (two) phases, phase I is an activity carried out directly in the village of Cileuksa consisting of surveys of natural resource potentials using ethnobiological approach and surveys of the socio-economic potential of the community in business development in the village of Cileuksa and phase II was recommendations analysis using descriptive analysis. The results found seven potential local resource-based business groups that had already been developed and could become the main business of the villagers. There were several other potential business commodities that could be further developed in Desa Cileuksa such as padi (Oryza sativa), pisang (Musa paradisiaca), ayam kampung (Gallus gallus), manggis (Garcinia mangostana), durian (Durio zibethinus), domba (Ovis aries), cabai (Capsicum annuum), kerbau (Bubalus bubalis), kayu afrika (Maesopsis eminii), and jeunjing (Falcataria moluccana). Generally, Desa Cileuksa’s products were sold to middlemen, due to market certainty.

Most Indonesians rely on liquefied petroleum gas as one of their primary sources of energy. Liquefied petroleum gas is classified into subsidized and non-subsidized. Subsidized liquefied petroleum gas is primarily used by low-income households, small businesses, and poor fishermen and farmers for cooking. However, no exit strategy has been established to overcome the increase in government spending on subsidized kerosene introduced in 2008. The problem is that macro variables may influence liquefied petroleum gas economic prices. The research aimed to identify the relationship between macro variables that might affect liquefied petroleum gas economic prices. It applied a quantitative method with Vector Auto Regression (VAR) and Vector Error Correction Model (VECM). The results demonstrate that inflation rate have a significant impact on the economic price of liquefied petroleum gas. Then, gross domestic product, inflation rate, and world gas price have positive correlations to the economic prices in liquefied petroleum gas. Meanwhile, currency exchange and world oil price have negative coefficients. The regression model indicates that a rise in inflation increases market prices in liquefied petroleum gas. Furthermore, the increased subsidized fuel means more poor people cannot afford liquefied petroleum gas. It is because high inflation reduces purchasing and potentially increases the number of poor people.