<p>The Purchasing Managers' Index (PMI) is a leading indicator of economic health, focusing on the manufacturing sector. It is based on a survey of purchasing managers in various industries, providing a snapshot of business conditions and future outlook.</p>

<h2>How It Works</h2>
<p>The PMI is calculated on a scale of 0 to 100, with readings above 50 indicating expansion and below 50 indicating contraction. The survey covers various aspects of business activity, including new orders, production, employment, supplier deliveries, and inventories. Each component is given a weight, with new orders and production having the highest influence on the final PMI reading.</p>

<h2>Why It Matters</h2>
<p>The PMI is a crucial indicator for investors, economists, and policymakers as it provides real-time insights into the manufacturing sector's performance and its potential impact on GDP growth. It can help anticipate changes in economic trends, inform monetary policy decisions, and guide investment strategies. Additionally, the PMI can serve as a leading indicator for other economic data, such as employment and industrial production.</p>