Cai guo-qiang studied in japan where he began to explore the creative possibilities of as a tool for making drrawings.

Cai guo-qiang studied in japan where he began to explore the creative possibilities of  gunpowder as a tool for making drrawings.
Cai Guo-giang discovered this invention when he went to study in Japan in 1986. Later on, his artworks large-scale explosions that took several lives.

Fiscal policy because it refers to the use of government spending and tax policies to influence macroeconomic conditions, including aggregate demand, employment, inflation, and economic growth.