The COVID-19 pandemic has had a significant impact on the world's economy. Here are some of the major effects:

Economic slowdown: The pandemic has led to a significant economic slowdown in many countries, as businesses have had to shut down or limit their operations to control the spread of the virus. This has led to job losses and reduced consumer spending, which in turn has impacted the overall economic growth.

Stock market volatility: The stock markets around the world experienced significant volatility, with many major indices experiencing significant declines in the early stages of the pandemic.

Government stimulus: To mitigate the impact of the pandemic, many governments around the world have implemented stimulus measures, such as increased spending, tax breaks, and low-interest rates. This has helped to prevent a more severe economic downturn, but it has also led to increased government debt.

Supply chain disruptions: The pandemic has caused significant disruptions to global supply chains, with many countries facing shortages of critical goods and services, such as medical supplies and food.

Changes in consumer behavior: The pandemic has led to significant changes in consumer behavior, as people have shifted their spending patterns towards essentials and online purchases. This has had a significant impact on many industries, such as retail and hospitality.

Overall, the COVID-19 pandemic has had a profound impact on the world's economy, and its full effects will likely be felt for years to come.