In politics, lobbying, persuasion, or interest representation is the act of lawfully attempting to influence the actions, policies, or decisions of government officials, most often legislators or members of regulatory agencies. Lobbying, which usually involves direct, face-to-face contact, is done by many types of people, associations and organized groups, including individuals in the private sector, corporations, fellow legislators or government officials, or advocacy groups (interest groups). Lobbyists may be among a legislator's constituencies, meaning a voter or bloc of voters within their electoral district; they may engage in lobbying as a business. Professional lobbyists are people whose business is trying to influence legislation, regulation, or other government decisions, actions, or policies on behalf of a group or individual who hires them. Individuals and nonprofit organizations can also lobby as an act of volunteering or as a small part of their normal job. Governments often define and regulate organized group lobbying that has become influential.
The ethics and morals involved with legally bribing or lobbying are complicated. Lobbying can, at times, be spoken of with contempt, when the implication is that people with inordinate socioeconomic power are corrupting the law in order to serve their own interests. When people who have a duty to act on behalf of others, such as elected officials with a duty to serve their constituents' interests or more broadly the public good, can benefit by shaping the law to serve the interests of some private parties, a conflict of interest exists. Many critiques of lobbying point to the potential for conflicts of interest to lead to agent misdirection or the intentional failure of an agent with a duty to serve an employer, client, or constituent to perform those duties. The failure of government officials to serve the public interest as a consequence of lobbying by special interests who provide benefits to the official is an example of agent misdirection. That is why lobbying is seen as one of the causes of a democratic deficit.
In a report carried by the BBC, an OED lexicographer has shown that "lobbying" finds its roots in the gathering of Members of Parliament and peers in the hallways ("lobbies") of the UK Houses of Parliament before and after parliamentary debates where members of the public can meet their representatives.
One story held that the term originated at the Willard Hotel in Washington, DC, where it was supposedly used by President Ulysses S. Grant to describe the political advocates who frequented the hotel's lobby to access Grant--who was often there in the evenings to enjoy a cigar and brandy--and then tried to buy the president drinks in an attempt to influence his political decisions. Although the term may have gained more widespread currency in Washington, D.C. by virtue of this practice during the Grant Administration, the OED cites numerous documented uses of the word well before Grant's presidency, including use in Pennsylvania as early as 1808.
The term "lobbying" also appeared in print as early as 1820:
Other letters from Washington affirm, that members of the Senate, when the compromise question was to be taken in the House, were not only "lobbying about the Representatives' Chamber" but also active in endeavoring to intimidate certain weak representatives by insulting threats to dissolve the Union.-- April 1, 1820
Governments often[quantify] define and regulate organized group lobbying as part of laws to prevent political corruption and by establishing transparency about possible influences by public lobby registers.
Lobby groups may concentrate their efforts on the legislatures, where laws are created, but may also use the judicial branch to advance their causes. The National Association for the Advancement of Colored People, for example, filed suits in state and federal courts in the 1950s to challenge segregation laws. Their efforts resulted in the Supreme Court declaring such laws unconstitutional.
Lobbyists may use a legal device known as amicus curiae (literally: "friend of the court") briefs to try to influence court cases. Briefs are written documents filed with a court, typically by parties to a lawsuit. Amici curiae briefs are briefs filed by people or groups who are not parties to a suit. These briefs are entered into the court records, and give additional background on the matter being decided upon. Advocacy groups use these briefs both to share their expertise and to promote their positions.
The lobbying industry is affected by the revolving door concept, a movement of personnel between roles as legislators and regulators and roles in the industries affected by legislation and regulation, as the main asset for a lobbyist is contacts with and influence on government officials. This climate is attractive for ex-government officials. It can also mean substantial monetary rewards for lobbying firms, and government projects and contracts worth in the hundreds of millions for those they represent.
The international standards for the regulation of lobbying were introduced at four international organizations and supranational associations: 1) the European Union; 2) the Council of Europe; 3) the Organization for Economic Cooperation and Development; 4) the Commonwealth of Independent States.
Efforts to prevent noncommunicable diseases go against the business interests of powerful economic operators. In my view, this is one of the biggest challenges facing health promotion. [...] it is not just Big Tobacco anymore. Public health must also contend with Big Food, Big Soda, and Big Alcohol. All of these industries fear regulation, and protect themselves by using the same tactics. Research has documented these tactics well. They include front groups, lobbies, promises of self-regulation, lawsuits, and industry-funded research that confuses the evidence and keeps the public in doubt. Tactics also include gifts, grants, and contributions to worthy causes that cast these industries as respectable corporate citizens in the eyes of politicians and the public. They include arguments that place the responsibility for harm to health on individuals, and portray government actions as interference in personal liberties and free choice. This is formidable opposition. [...] When industry is involved in policy-making, rest assured that the most effective control measures will be downplayed or left out entirely. This, too, is well documented, and dangerous. In the view of WHO, the formulation of health policies must be protected from distortion by commercial or vested interests.
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In pre-modern political systems, royal courts provided incidental opportunities for gaining the ear of monarchs and their councillors. Nowadays, lobbying has taken a more drastic position as big corporations pressure politicians to help them gain more benefit. Lobbying has become a big part of the world economy as big companies corrupt laws and regulations.
Over the past twenty years, lobbying in Australia has grown from a small industry of a few hundred employees to a multi-billion dollar per year industry. What was once the preserve of big multinational companies and at a more local level (property developers, for example Urban Taskforce Australia) has morphed into an industry that employs more than 10,000 people and represents every facet of human endeavour.
A register of federal lobbyists is kept by the Australian Government and is accessible to the public via its website. Similar registers for State government lobbyists were introduced between 2007 and 2009 around Australia. Since April 2007 in Western Australia, only lobbyists listed on the state's register are allowed to contact a government representative for the purpose of lobbying. Similar rules have applied in Tasmania since 1 September 2009 and in South Australia and Victoria since 1 December 2009.
The first step towards specialized regulation of lobbying in the European Union was a Written Question tabled by Alman Metten, in 1989. In 1991, Marc Galle, Chairman of the Committee on the Rules of Procedure, the Verification of Credentials and Immunities, was appointed to submit proposals for a Code of conduct and a register of lobbyists. Today lobbying in the European Union is an integral and important part of decision-making in the EU. From year to year lobbying regulation in the EU is constantly improving and the number of lobbyists increases.
In 2003 there were around 15,000 lobbyists (consultants, lawyers, associations, corporations, NGOs etc.) in Brussels seeking to influence the EU's legislation. Some 2,600 special interest groups had a permanent office in Brussels. Their distribution was roughly as follows: European trade federations (32%), consultants (20%), companies (13%), NGOs (11%), national associations (10%), regional representations (6%), international organizations (5%) and think tanks (1%), (Lehmann, 2003, pp iii). In addition to this, lobby organisations sometimes hire former EU employees (a phenomenon known as the revolving door) who possess inside knowledge of the EU institutions and policy process  A report by Transparency International EU published in January 2017 analysed the career paths of former EU officials and found that 30% of Members of the European Parliament who left politics went to work for organisations on the EU lobby register after their mandate and approximately one third of Commissioners serving under Barroso took jobs in the private sector after their mandate, including for Uber, ArcelorMittal, Goldman Sachs and Bank of America Merrill Lynch. These potential conflicts of interest could be avoided if a stronger ethics framework were established at the EU level, including an independent ethics body and longer cooling-off periods for MEPs.
In the wake of the Jack Abramoff Indian lobbying scandal in Washington D.C. and the massive impact this had on the lobbying scene in the United States, the rules for lobbying in the EU--which until now consist of only a non-binding code of conduct---may also be tightened.
Eventually on 31 January 2019 the European Parliament adopted binding rules on lobby transparency. Amending its Rules of Procedure, the Parliament stipulated that MEPs involved in drafting and negotiating legislation must publish online their meetings with lobbyists. The amendment says that "rapporteurs, shadow rapporteurs or committee chairs shall, for each report, publish online all scheduled meetings with interest representatives falling under the scope of the Transparency Register"-database of the EU. 
There is currently no regulation at all for lobbying activities in France. There is no regulated access to the French institutions and no register specific to France, but there is one for the European Union where French lobbyists can register themselves. For example, the internal rule of the National Assembly (art. 23 and 79) forbids members of Parliament to be linked with a particular interest. Also, there is no rule at all for consultation of interest groups by the Parliament and the Government. Nevertheless, a recent parliamentary initiative (motion for a resolution) has been launched by several MPs so as to establish a register for representatives of interest groups and lobbyists who intend to lobby the MPs.
A 2016 study found evidence of significant indirect lobbying of then-PM Silvio Berlusconi through business proxies. The authors document a significant pro-Mediaset (the mass media company founded and controlled by Berlusconi) bias in the allocation of advertising spending during Berlusconi's political tenure, in particular for companies operating in more regulated sectors.
Lobbying in the United States describes paid activity in which special interests hire professional advocates to argue for specific legislation in decision-making bodies, such as the United States Congress. Some lobbyists are now using social media to reduce the cost of traditional campaigns, and to more precisely target public officials with political messages.
A 2011 study of the 50 firms that spent the most on lobbying relative to their assets compared their financial performance against that of the S&P 500, and concluded that spending on lobbying was a "spectacular investment" yielding "blistering" returns comparable to a high-flying hedge fund, even despite the financial downturn. A 2011 meta-analysis of previous research findings found a positive correlation between corporate political activity and firm performance. A 2009 study found that lobbying brought a return on investment of as much as 22,000% in some cases. Major American corporations spent $345 million lobbying for just three pro-immigration bills between 2006 and 2008.
Foreign-funded lobbying efforts include those of Israel, Saudi Arabia, Turkey, Egypt, Pakistan, and China lobbies. In 2010 alone, foreign governments spent approximately $460 million on lobbying members of Congress and government officials.
Other countries where lobbying is regulated in parliamentary bills include:
The royal court was home to the king and therefore was an important arena for policy issues and decisions. [...] we find isolated examples of lobbyists for particular interests. An example of such a figure was Sir John Hay, who spent frequent intervals at court during [the reigns of James VI/I and Charles I] when he acted as agent for the Scottish Royal Burghs.
...Hiring a top-flight lobbyist looks like a spectacular investment ...
doi: 10.1177/0149206310392233 Journal of Management; vol. 37 no. 1 223-247