Soft power is a term used in international relations theory to describe the ability of a political body, such as a state, to indirectly influence the behavior or interests of other political bodies through cultural or ideological means. Politics Politics is the process by which groups of people make decisions A state is a political association with effective Sovereignty over a geographic Area and representing a Population. Interest is a fee paid on borrowed capital Assets lent include Money, Shares, Consumer goods through Hire purchase, major assets Culture (from the Latin cultura stemming from colere, meaning "to cultivate" generally refers to patterns of human activity and the symbolic An ideology is a set of beliefs aims and Ideas especially in politics The term was first coined by Harvard University professor Joseph Nye, who remains its most prominent proponent, in a 1990 book, Bound to Lead: The Changing Nature of American Power. The meaning of the word professor ( Latin: professor, person who professes to be an expert in some art or science teacher of highest rank) varies Joseph S Nye Jr (born 1937 is the co-founder along with Robert Keohane, of the International relations theory neoliberalism developed in their 1977 Year 1990 ( MCMXC) was a Common year starting on Monday (link displays the 1990 Gregorian calendar) He further developed the concept in his 2004 book, Soft Power: The Means to Success in World Politics. Its usefulness as a descriptive theory has been challenged often, but soft power is still being used as a term that distinguishes the subtle effects of culture, values, and ideas on others' behavior from more direct coercive measures called hard power such as military action (hard power) or economic incentives. Hard power is a term describing power obtained from the utilisation of military and/or economic power to influence the behaviour or interests of other political bodies A military is an Organization authorized by its Nation to use force usually including use of Weapons in defending its Country (or by attacking Hard power is a term describing power obtained from the utilisation of military and/or economic power to influence the behaviour or interests of other political bodies An economy is the realized social system of production exchange distribution and consumption of goods and services of a country or other area
The basic concept of power is the ability to influence others to get them to do what you want. Power in international relations is defined in several different ways There are three major ways to do that: one is to threaten them with sticks; the second is to pay them with carrots; the third is to attract them or co-opt them, so that they want what you want. If you can get others to be attracted to want what you want, it costs you much less in carrots and sticks. 
Soft power, then, represents the third way of getting the outcomes you want. Soft power is contrasted with hard power, which has historically been the predominant realist measure of national power, through quantitative metrics such as population size, concrete military assets, or a nation's Gross Domestic Product. Hard power is a term describing power obtained from the utilisation of military and/or economic power to influence the behaviour or interests of other political bodies A quantitative attribute is one that exists in a range of magnitudes and can therefore be measured. A metric is a standard unit of measure such as Meter or Gram, or more generally part of a system of parameters or Systems of measurement, or a set of In Biology a population is the collection of inter-breeding organisms of a particular Species; in Sociology A military is an Organization authorized by its Nation to use force usually including use of Weapons in defending its Country (or by attacking But having such resources does not always produce the desired outcomes as the United States discovered in the Vietnam War. The resources from which soft power behavior is derived are culture (when it is attractive to others), values (when there is no hypocrisy in their application) and foreign policies (when they are seen as legitimate in the eyes of others). Unless these conditions are present, culture and ideas do not necessarily produce the attraction that is essential for soft power behavior. The extent of attraction can be measured by public opinion polls, by elite interviews, and case studies. Nye argues that soft power is more than influence, since influence can also rest on the hard power of threats or payments. And soft power is more than just persuasion or the ability to move people by argument, though that is an important part of it. It is also the ability to attract, and attraction often leads to acquiescence.
If I am persuaded to go along with your purposes without any explicit threat or exchange taking place — in short, if my behavior is determined by an observable but intangible attraction — soft power is at work. Soft power uses a different type of currency — not force, not money — to engender cooperation. It uses an attraction to shared values, and the justness and duty of contributing to the achievement of those values. 
The success of soft power heavily depends on the actor’s reputation within the international community, as well as the flow of information between actors. Reputation is the opinion (more technically a social evaluation of the public toward a Person, a group of people, or an Organization. The international community is a vague term used in International relations to refer to all the countries of the world or to a group of them Thus, soft power is often associated with the rise of globalization and neoliberal international relations theory. Globalization (or globalisation) in its literal sense is the process of transformation of local or regional phenomena into global ones Originally coined by its critics and opponents " neoliberalism " is a label referring to the recent reemergence of Economic liberalism or Classical liberalism Popular culture and media is regularly identified as a source of soft power, as is the spread of a national language, or a particular set of normative structures; a nation with a large amount of soft power and the good will that engenders it inspire others to acculturate, avoiding the need for expensive hard power expenditures. Popular culture (or pop culture) is the Culture — patterns of human activity and the symbolic structures that give such activities significance and importance — "Popular press" redirects here note that the University of Wisconsin Press publishes under the imprint "The Popular Press" A language is a dynamic set of visual auditory or tactile Symbols of Communication and the elements used to manipulate them Normative has specialized meanings in several academic disciplines Acculturation is the exchange of cultural features that results when groups come into continuous firsthand contact the original cultural patterns of either or both groups may be altered Hard power is a term describing power obtained from the utilisation of military and/or economic power to influence the behaviour or interests of other political bodies