风险声明：差价合约（CFD）是属于复杂的投资产品，因杠杆而存在快速亏损的高度风险。
交易前您应衡量是否了解差价合约以及是否能够承担发生亏损的高风险。
Web Trader MT5
J
J Curve theory
The idea that a country’s trade balance will initially worsen after a currency devaluation before improving in the long run.
Jamaican Dollar (JMD)
JMD is the international code for the Jamaican Dollar, Jamaica’s official currency. It replaced the Jamaican pound in 1969 and is divided into 100 cents. Local prices often use J$ to separate it from other currencies also called dollars. This distinction is particularly useful in tourism, where some hotels, restaurants, and shops may display prices in both Jamaican and US dollars. A bill marked J$2,000 normally means two thousand Jamaican dollars unless USD is clearly stated. Banknotes and coins are used for everyday payments, although the smallest denominations have become less useful as prices have risen over time.
Janet Yellen
Janet Yellen is an American economist who has led several major US economic institutions. She chaired the Federal Reserve from 2014 to 2018, becoming the first woman to lead the US central bank. From 2021 to 2025, she served as US Treasury Secretary and was also the first woman to hold that position. Earlier, she chaired the Council of Economic Advisers and led the Federal Reserve Bank of San Francisco. Her work has focused heavily on employment, wages, inflation, and financial stability. Older reports may describe her as Fed Chair or Treasury Secretary, depending on the stage of her career being discussed.
Japanese Economy Watchers Survey
The Japanese Economy Watchers Survey is a monthly report on how people close to everyday business activity view Japan’s economy. Participants include shop managers, restaurant workers, taxi drivers, and others whose jobs give them regular contact with customers. They assess current conditions and what they expect over the next few months. Their answers are converted into diffusion indices. A reading above 50 generally indicates that positive assessments are stronger than negative ones, while a result below 50 points to weaker sentiment. The report also publishes written comments that can reveal concerns about prices, wages, tourism, weather, and consumer spending.
Japanese Machine Tool Orders
Japanese Machine Tool Orders measure new orders received by Japanese manufacturers of machinery used to cut and shape metal. These machines help produce parts for cars, electronics, aircraft, and industrial equipment. The report separates domestic orders from those placed by overseas customers. Strong foreign orders may therefore reflect factory investment in China, Europe, the United States, or another market, rather than conditions in Japan alone. Companies normally purchase expensive machine tools when they plan to increase capacity or replace older equipment. This makes the data a useful early sign of business investment. It is separate from Japan’s broader government machinery-orders report.
Japanese Yen (JPY)
Japan’s official currency is the Japanese Yen, identified by the code JPY and the symbol ¥. It is also one of the world’s most actively traded currencies. Prices in Japan are normally shown in whole yen because smaller units are no longer used in ordinary payments. In USD/JPY, the number represents the yen needed to buy one US dollar. At 150, one dollar costs 150 yen. If the pair falls to 140, fewer yen are required, which means the yen has strengthened against the dollar. The Bank of Japan issues yen banknotes, while the national government is responsible for issuing coins.
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