It remains mostly unexplored and unexploited to this day. Mutsunori Tokeshi later elaborated niche apportionment theory to include niche filling in unexploited resource space. The Europeans also had vast unexploited technologies as well as economics possibilities. The country has significant wind and solar resources that remain largely unexploited. The country has significant small hydro, wind, and solar resources that remain largely unexploited. However, this large potential is still largely unexploited. Recent explorations suggest the presence of the world's largest unexploited iron ore deposit. The largest unexploited natural gas potential was believed to be in Qinghai and Xinjiang. Since any inefficient allocation leaves unexploited contractual opportunities, the allocation cannot be a contractual equilibrium. The mountains contain relatively unexploited deposits of gold, silver, iron, and coal. Kigamboni has a strong presence with large tracts of good, unexploited land. There are unexploited lime resources in Tetlama. These lands were full of unexploited and valuable natural resources, which attracted all of Europe. But the potential for e-government in developing countries remains largely unexploited, even though. With no commercial viability, its potential went unexploited and the patent eventually lapsed.