Which organization holds a great influence over global politics and trade because of its control of oil reserves?

The Organization of the Petroleum Exporting Countries (OPEC)

Explanation:

The Organization of the Petroleum Exporting Countries (OPEC) is an international organization that includes 14 member nations. These nations account for 44% of all global oil production, and include 81.5% of the world's proven oil reserves. Therefore, the organization holds great influence over global politics and trade.

for starters, there is the structural trend of rising primary government expenditure as a share of gdp, which reached 36% in 2014, up from 22% in 1991. this increase reflected a political desire to address the poverty and inequality that had gone unaddressed during previous decades. to support the increase, brazil’s government increased taxes on consumption and promoted progress toward labor-market formalization. nonetheless, public investment, particularly in infrastructure, took a hit. in fact, with the exception of the 2005-2008 period, total investment as a share of gdp has remained below 20% since 1991.