Permana and Miyata (2009) showed a partial equilibrium urban economic model to explain the existence of illegal settlements in flood prone areas in Palangkaraya City in Central Kalimantan Province, introducing the expected damage rate on household asset. Applying this new idea, one can derive...

Among others Beckmann (1952) firstly introduced the concept of a two dimensional continuous space into economics. This great step had unfortunately not shown further expansion in economics. Through several papers related to Beckmann's initiation, Beckmann and Puu (1985) at last reached a...