The GDP for the United States is a gauge of the overall output (goods & services) of the US economy on the continental US GDP is the most comprehensive overall measure of economic output and provides key insight into the driving forces of the economy.

GDP Influence On Markets
If the figure increases, then the economy is improving, and thus the dollar tends to strengthen. If the number falls short of expectations or meets the consensus, dollar bearishness may be triggered. This sort of reaction is again tied to interest rates, as traders expect an accelerating economy, consumers will be affected by inflation and consequently interest rates will rise. However, much like the CPI, a negative change in GDP is more difficult to trade; just because the pace of growth has slowed does not mean it has deteriorated. On the other hand, a better than expected number will usually result in the dollar rising as it implicates that a quickly expanding economy will sooner or later require higher interest rates to keep inflation in check. Overall though, the GDP has fallen in significance and its ability to move markets since most of the components of the report are known in advance

Due to the untimeliness of this report and because data on GDP components are available beforehand, the actual GDP figure is usually well anticipated. But given its overall significance GDP has the tendency to move the market upon release, acting to confirm or upset economic expectations. Robust GDP growth signals a heightened level of activity that is generally associated with a healthy economy. However economic expansion also raises concerns about inflationary pressures which may lead to monetary policy tightening.

Gross Domestic Product is calculated in the following way
GDP = C + I + G + (EX - IM)
where
C = private consumption
I = private investment
G = government expenditure
EX = exports of goods and services
IM = imports of goods and services

The figure is commonly reported in headlines as an annualized percentage, based on quarterly data.

On a technical note: The GDP can be reported in either real or nominal terms, real GDP being adjusted for inflation. GDP actually has three releases, as an Advanced, Preliminary, and Final figure. The Advanced figure is released four weeks following the quarter's end. One month later, the Preliminary GDP is released, followed by the Final GDP measure at the end of the quarter following the reporting quarter. As the most timely measure, the Advanced GDP tends to move markets the most.

The value of orders placed for relatively long-lasting goods. Durable Goods are expected to last more than three years. Such products often require large investments and usually reflect optimism on the part of the buyer that their expenditure will be worthwhile.

Because orders for goods have large sway over the actual production, this figure serves as an excellent forecast of US output to come. Durable Goods are typically sensitive to economic changes. When consumers become sceptical about economic conditions, sales of durable goods are one of the first to be impacted since consumers can delay purchases of durable items, like cars and televisions, only spending money on necessities in times of economic hardship. Conversely, when consumer confidence is restored, orders for durable goods rebound quickly.

The European Central Bank press conference following interest rate announcement.

The European Central Bank's decision to increase, decrease, or maintain interest rates. Controlling interest rates is the key mechanism of monetary policy, and the ECB influences interest rates by first changing the "overnight rate" through the purchase or sale of government bonds. Lowering rates can spur economic growth but may incite inflationary pressures. On the other hand, increasing rates slow inflation but can stymie growth.

The European Central Bank makes a concerted effort to be transparent in its policy. Frequent speeches by Bank Governors make policy goals clear and the Bank adheres to a stated inflation target of 2% changing rates accordingly to meet that goal. Because of this, rate decisions are generally well anticipated, but very important nonetheless.

The ECB's rate decision has an enormous influence on financial markets. Because the ECB interest rate is essentially the return investors receive while holding Euros, changes in rates affect the exchange rate of the Euro.

Because rate changes are usually well anticipated, the actual decision does not tend to impact the market. But if the ECB changes rates they will hold a press conference where some rationale for the decision is offered. Market participants pay close attention to the press conference, hoping to clue in on the likelihood of further rate changes. Often, the language used in the press conference holds important signals to how ECB feels about inflation and the economy. The ECB President's language will be "hawkish" if he is pessimistic about the inflation outlook for the economy. In that case, the market sees a higher chance of future rate hike. Conversely, if the ECB President believes inflation is in check, his remarks will be "dovish," and the market perceives a future rate increase to be unlikely.

National Consumer Price Index (CPI) is the key gauge for inflation in Japan. Simply put, inflation reflects a decline in the purchasing power of the Yen, where each Yen buys fewer goods and services. In terms of measuring inflation, CPI is the most obvious way to quantify changes in purchasing power. The report tracks changes in the price of a basket of goods and services that a typical Japanese household might purchase. An increase in the index indicates that it takes more Yen to purchase this same set of basic consumer items.

Markets will typically pay more attention to "CPI excluding Fresh Food," because it excludes volatile food prices that can distort overall CPI. The headline figure for CPI is the percentage change in the index on a month to month or year to year basis.

As the most important indicator of inflation, CPI figures are closely followed by the Bank of Japan. Rising Consumer Prices may prompt the BoJ to raise interest rates in order to manage inflation and slow economic growth. Higher interest rates make holding the Yen more attractive to foreign investors, and this higher level of demand will place upward pressure on the value of the Yen.