International economics is a field of study which assesses the implications of international trade in goods and services and international investment. There are two broad sub-fields within international economics: international trade and international finance. International trade is a field in economics that applies microeconomic models to help understand the international economy. Its content includes the same tools that are introduced in microeconomics courses, including supply and demand analysis, firm and consumer behavior, perfectly competitive, oligopolistic and monopolistic market structures, and the effects of market distortions. The typical course describes economic relationships between consumers, firms, factor owners, and the government. International finance applies macroeconomic models to help understand the international economy. Its focus is on the interrelationships between aggregate economic variables such as GDP, unemployment rates, inflation rates, trade balances, exchange rates, interest rates, etc. This field expands macroeconomics to include international exchanges. The information can be published in our peer reviewed journal with impact factors and are calculated using citations not only from research articles but also review articles (which tend to receive more citations), editorials, letters, meeting abstracts, short communications, and case reports. The inclusion of these publications provides the opportunity for editors and publishers to manipulate the ratio used to calculate the impact factor and try to increase their number rapidly. Impact factor plays a major role for the particular journal. Journal with higher impact factor is considered to be more important than other ones.