Final answer:
There is no direct figure given for the percentage of global economic output attributed to corruption; it varies and requires specific research for an accurate answer.
Step-by-step explanation:
The question asks what percentage corruption represents of global economic output. Based on the information provided, there isn't a direct figure available that indicates the precise percentage of global economic output lost to corruption. However, in a broader sense related to the global economy, we can infer that corruption can reduce the efficiency of economic activities, leading to potential losses in GDP. As corruption increases the cost of doing business, it can deter foreign investment, raise operational costs, and distort public expenditure, thus harming economic growth and development. While specific percentages such as 2-3% contribution to annual total or the 1% increase mentioned with respect to the gains from trade are noted, these do not directly answer the question related to corruption's impact on economic output. Therefore, the student is advised to seek updated, specific research on the topic of corruption's percentage of the global economic output for a precise figure.