The actual inventories of crude oil, gasoline, and distillate, such as jet fuel, as reported on a weekly basis. The numbers are watched closely by the energy markets, and if the results differ greatly from the expected inventory levels, the market can react strongly. The inventory data can be skewed by holidays and seasonal factors. Weekly data can be unreliable and should be viewed as a part of longer-term trends, so a four-week moving average may be more useful.

Report on current economic conditions in each of the 12 Federal Reserve districts covering the entire US. Regional Banks in the Federal Reserve System gather anecdotal information based on surveys of executives, economist and market participants. The Beige Book summarizes this data into a relatively short document, giving a picture of economic trends and challenges faced by different parts of the nation.

In addition to providing useful information on the economy, the report is also a window into how FOMC members may vote at the next interest rate policy meeting. Because each report is based on anecdotal information as much as statistics, it is subjective and may reflect opinions of district governors. As the only comprehensive report made available to the public, the Beige Book provides a rare opportunity for markets to better understand the Federal Reserve and its views on the economy.

Report on current economic conditions in each of the 12 Federal Reserve districts covering the entire US. Regional Banks in the Federal Reserve System gather anecdotal information based on surveys of executives, economist and market participants. The Beige Book summarizes this data into a relatively short document, giving a picture of economic trends and challenges faced by different parts of the nation.

In addition to providing useful information on the economy, the report is also a window into how FOMC members may vote at the next interest rate policy meeting. Because each report is based on anecdotal information as much as statistics, it is subjective and may reflect opinions of district governors. As the only comprehensive report made available to the public, the Beige Book provides a rare opportunity for markets to better understand the Federal Reserve and its views on the economy.

John C. Williams is President and CEO of the Federal Reserve Bank of San Francisco.

John C. Williams is President and CEO of the Federal Reserve Bank of San Francisco.