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Cartel theory is usually understood as the doctrine of economic
cartel A cartel is a group of independent market participants who collude with each other in order to improve their profits and dominate the market. Cartels are usually associations in the same sphere of business, and thus an alliance of rivals. Mos ...
s. However, since the concept of 'cartel' does not have to be limited to the field of the
economy An economy is an area of the production, distribution and trade, as well as consumption of goods and services. In general, it is defined as a social domain that emphasize the practices, discourses, and material expressions associated with the ...
, doctrines on non-economic cartels are conceivable in principle. Such exist already in the form of the state cartel theory and the cartel party theory. For the pre-modern cartels, which existed as rules for
tournament A tournament is a competition involving at least three competitors, all participating in a sport or game. More specifically, the term may be used in either of two overlapping senses: # One or more competitions held at a single venue and concentr ...
s, duels and court games or in the form of inter-state fairness agreements, there was no scientific theory. Such has developed since the 1880s for the scope of the economy, driven by the need to understand and classify the mass emergence of
entrepreneur Entrepreneurship is the creation or extraction of economic value. With this definition, entrepreneurship is viewed as change, generally entailing risk beyond what is normally encountered in starting a business, which may include other values t ...
ial cartels. Within the economic cartel theory, one can distinguish a classical and a modern phase. The break between the two was set through the enforcement of a general cartel ban after Second World War by the US government.


Definitions

Cartel is an ambiguous concept, which usually refers to a combination or agreement between rivals, but – derived from this – also designates
organized crime Organized crime (or organised crime) is a category of transnational, national, or local groupings of highly centralized enterprises run by criminals to engage in illegal activity, most commonly for profit. While organized crime is generally th ...
. The main use of ‘cartel’ is that of an anticompetitive association in the economy. In politics, it refers to a temporary alliance of several
parties A party is a gathering of people who have been invited by a host for the purposes of socializing, conversation, recreation, or as part of a festival or other commemoration or celebration of a special occasion. A party will often feature ...
in election campaigns, for example. The scientific analysis of cartels is done by cartel theory.


Different spellings

In other languages, ‘cartel’ might have different spellings. It is called ‘cartello’ (in Italian), ‘kartell’ (in German, Hungarian and Estonian), ‘kartel’ (in
Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...
, Turkish and Slavic languages), ‘kartelli’ (in
Finnish Finnish may refer to: * Something or someone from, or related to Finland * Culture of Finland * Finnish people or Finns, the primary ethnic group in Finland * Finnish language, the national language of the Finnish people * Finnish cuisine See also ...
), and ‘kartelis’ (in Lithuanian). Even in the same languages, the spelling has varied over time, e.g. in German several times from the c-initial to the k-initial and back. Nevertheless, ‘cartel’ is the most widespread worldwide because of its use in English, Spanish, French and
Portuguese Portuguese may refer to: * anything of, from, or related to the country and nation of Portugal ** Portuguese cuisine, traditional foods ** Portuguese language, a Romance language *** Portuguese dialects, variants of the Portuguese language ** Portu ...
. Thus, between ‘cartels’ with a "c"- or "k"-beginning, there is no difference in meaning. However, some institution names differ mainly by this letter, e.g. the Kartellverband katholischer deutscher Studentenvereine and the
Cartellverband der katholischen deutschen Studentenverbindungen The Union of Catholic German Student Fraternities (german: Cartellverband der katholischen deutschen Studentenverbindungen or ''Cartellverband'' (CV)) is a German umbrella organization of Catholic male student fraternities (Studentenverbindung). ...
both being
umbrella organization An umbrella organization is an association of (often related, industry-specific) institutions who work together formally to coordinate activities and/or pool resources. In business, political, and other environments, it provides resources and ofte ...
s of
Catholic The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...
student associations in Germany.


Etymology

The word "cartel" has its root in the Greek χάρτης (= papyrus scroll, paper, map) and came about the Latin "charta" (see Magna Carta, the English medieval law), the Italian "cartello" (diminutive of carta = paper, map) and the French "cartel" into the English and German language. Holm Arno Leonhardt: ''Kartelltheorie und Internationale Beziehungen. Theoriegeschichtliche Studien'', Hildesheim 2013. In the Middle Ages, it designated an agreement on the fighting rules in the knightly
tournament A tournament is a competition involving at least three competitors, all participating in a sport or game. More specifically, the term may be used in either of two overlapping senses: # One or more competitions held at a single venue and concentr ...
, then for duels. Until the 18th century, also the rules for noble games and courtly contests were named so. In modern times, especially in the 18th and 19th centuries, the term "cartel" was also used for intergovernmental agreements of technical kind: The guiding idea of a conflict confining clause came to light in various treaties between belligerent states, such as "cartels" on the postal and Trade or the treatment of couriers, prisoners of war and
deserter Desertion is the abandonment of a military duty or post without permission (a pass, liberty or leave) and is done with the intention of not returning. This contrasts with unauthorized absence (UA) or absence without leave (AWOL ), which ...
s. It is not until about 1880 that the term "cartel" also means the restriction of competition between entrepreneurs. Initially, this usage was only spread in the German speaking countries in Europe. Only by and by, this novel word meaning was imported into neighboring languages (either as "Kartell" or "cartel") and by this the economic aspect became the predominant meaning of "cartel". In the 19th and 20th century, also social associations or political alliances were referred to as cartels, so the union of German student fraternities or the cartel parties or in the German Empire. In
Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to th ...
of the 20th and 21st century, there was the same naming for party alliances, e.g. "Vlaams Kartel". At the beginning of the 20th century, the socialist thinker
Karl Kautsky Karl Johann Kautsky (; ; 16 October 1854 – 17 October 1938) was a Czech-Austrian philosopher, journalist, and Marxist theorist. Kautsky was one of the most authoritative promulgators of orthodox Marxism after the death of Friedrich Engels i ...
saw the possibility of even a cartel between states that would replace the
imperialist Imperialism is the state policy, practice, or advocacy of extending power and dominion, especially by direct territorial acquisition or by gaining political and economic control of other areas, often through employing hard power (economic and ...
competition of the
great power A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power in ...
s and establish a peaceful
ultra-imperialism Ultra-imperialism, or occasionally hyperimperialism and formerly super-imperialism, is a potential, comparatively peaceful phase of capitalism, meaning after or beyond imperialism. It was described mainly by Karl Kautsky. Post-imperialism is someti ...
.


Specific uses

The term ‘’cartel’’ is normally used in a specific context, resulting in a number of content variations. So there is: *
Cartel A cartel is a group of independent market participants who collude with each other in order to improve their profits and dominate the market. Cartels are usually associations in the same sphere of business, and thus an alliance of rivals. Mos ...
s in business, formed by enterprises or other market players, * Labor union cartels ("Gewerkschaftskartelle") as associations of several trade unions of the same locality, so in Germany of the late 19th and early 20th century, * Cartels between states, example: OPEC or more generally treated in the state cartel theory, * Party cartels in the sense of a cooperation of parties in elections and in parliament, * Cartels as umbrella organizations of German speaking student's fraternities, * Cartels as criminal organizations or
mafia "Mafia" is an informal term that is used to describe criminal organizations that bear a strong similarity to the original “Mafia”, the Sicilian Mafia and Italian Mafia. The central activity of such an organization would be the arbitration of d ...
, examples:
drug cartel A drug cartel is any criminal organization with the intention of supplying drug trafficking operations. They range from loosely managed agreements among various drug traffickers to formalized commercial enterprises. The term was applied when th ...
,
Medellín cartel The Medellín Cartel ( es, Cartel de Medellín) was a powerful and highly organized Colombian drug cartel and terrorist organization originating in the city of Medellín, Colombia that was founded and led by Pablo Escobar. It is often considered ...
* Cartels between people, meant above all derogatory, e.g. the ‘cartel of the wicked' or the ‘silent cartel’, *
Cartels A cartel is a group of independent market participants who collude with each other in order to improve their profits and dominate the market. Cartels are usually associations in the same sphere of business, and thus an alliance of rivals. Mos ...
as intergovernmental agreements: From the 17th to 19th centuries, there were agreements between (competing or belligerent) states on the maintenance of postal and commercial traffic, the entry and exit of couriers, prisoners of war and deserters. They also could deal with a more rational enforcement of the Customs regulations by the right of the border guard authorities to be allowed to enter the territory of the neighboring state to persecute smugglers. In addition, "
cartel A cartel is a group of independent market participants who collude with each other in order to improve their profits and dominate the market. Cartels are usually associations in the same sphere of business, and thus an alliance of rivals. Mos ...
" or " Kartel" are used as names for distinct brands, business companies, music bands or
works of art A work of art, artwork, art piece, piece of art or art object is an artistic creation of aesthetic value. Except for "work of art", which may be used of any work regarded as art in its widest sense, including works from literature ...
.


Constituent characteristics and exclusion criteria for cartels

Cartels are not always easy to spot. To be able to reliably distinguish them as alliances between rivals from other forms of organization, the consideration of positive and negative indicators can be helpful. Constituent criteria for cartels would be the following: * The members are, at the same time, partners as well as competitors (so do e.g. enterprises,
state State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States * ''Our S ...
s,
parties A party is a gathering of people who have been invited by a host for the purposes of socializing, conversation, recreation, or as part of a festival or other commemoration or celebration of a special occasion. A party will often feature ...
, duelists,
tournament A tournament is a competition involving at least three competitors, all participating in a sport or game. More specifically, the term may be used in either of two overlapping senses: # One or more competitions held at a single venue and concentr ...
knight A knight is a person granted an honorary title of knighthood by a head of state (including the Pope) or representative for service to the monarch, the church or the country, especially in a military capacity. Knighthood finds origins in the Gr ...
s). These members can be individual persons or organizations. * The members of a cartel are independent of each other, negotiating their interests with each other and against each other. So there have to be at least two participants and they determine their interests autonomously. * The members of a cartel know each other; they have a direct relationship, in particular they communicate with each other. Exclusion criteria for cartels would be the following: * There is a "hierarchical" or other strong "dependency relationship among the participants": a drug
mafia "Mafia" is an informal term that is used to describe criminal organizations that bear a strong similarity to the original “Mafia”, the Sicilian Mafia and Italian Mafia. The central activity of such an organization would be the arbitration of d ...
that is organized hierarchically and managed by a single boss can't be a
drug cartel A drug cartel is any criminal organization with the intention of supplying drug trafficking operations. They range from loosely managed agreements among various drug traffickers to formalized commercial enterprises. The term was applied when th ...
in the sense of a real "cartel". Likewise, a business corporation can't be a "cartel" due to its central management, which controls its subsidiaries. Furthermore, an OPEC, in which all adherents would be dependent on the largest member (since long:
Saudi Arabia Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in Western Asia. It covers the bulk of the Arabian Peninsula, and has a land area of about , making it the fifth-largest country in Asia, the second-largest in the A ...
) would no longer be a "cartel". Similarly, colonial empires from a
motherland A homeland is a place where a cultural, national, or racial identity has formed. The definition can also mean simply one's country of birth. When used as a proper noun, the Homeland, as well as its equivalents in other languages, often has ethni ...
and colonies do not constitute a " state cartel". * The union of competitors, in their entirety or via important members of its association, is dependent on an outside power. A strict, state-mandated compulsory cartel without freedom of choice between the partners would not be a (real) cartel. A suitable example is the "Deutsche Wagenbau-Vereinigung" (German Railway Cars Association), which was organized in the 1920s by the "Deutsche Reichsbahn" (German Imperial Railways) – its "market opponent". * The
combination In mathematics, a combination is a selection of items from a set that has distinct members, such that the order of selection does not matter (unlike permutations). For example, given three fruits, say an apple, an orange and a pear, there are th ...
takes place between actors of different levels. Thus, the concerted actions of employers’ associations and trade unions in some industrialized countries was not a cartel, because the allies there were no homogenous competitors. * The alleged members of a suspected cartel do not know each other, but only randomly show a parallel behavior: “Cartels of the godless”, “cartels of maintenance deniers” or “silent cartels” are therefore usually no real cartels, but pure verbal abuse formulas.


Classic cartel theory

The origin of the usage of 'cartel' for entrepreneurial co-operations was the German speaking region of
Central Europe Central Europe is an area of Europe between Western Europe and Eastern Europe, based on a common historical, social and cultural identity. The Thirty Years' War (1618–1648) between Catholicism and Protestantism significantly shaped the a ...
. Already in the 1870, 'Cartell' came up for railway companies who unified their
technical standard A technical standard is an established norm or requirement for a repeatable technical task which is applied to a common and repeated use of rules, conditions, guidelines or characteristics for products or related processes and production methods, ...
s, pooled their stocks of railroad cars and coordinated their time schedules. In 1883, an explanatory framework was based upon this novel understanding of "cartel": the classic cartel theory, which was in the same way of German origin: The Austro-Hungarian professor of economics Friedrich Kleinwächter had condensed a number of case studies to the draft of an empirical theory. Cartel theory remained for decades the product, above all, of Central European economists of German tongue. That approach was well-intentioned to the entrepreneurial cartels and in this respect was functionalist and institutionalist. It had its origin in the historical school of economics. The classic cartel theory itself went through three stages of development: * an early one, partly naive, in which the " historical school of economics" strongly dominated (
Gustav von Schmoller Gustav Friedrich (after 1908: von) Schmoller (; 24 June 1838 – 27 June 1917) was the leader of the "younger" German historical school of economics. He was a leading '' Sozialpolitiker'' (more derisively, '' Kathedersozialist'', "Socialist of t ...
,
Karl Bücher Karl Wilhelm Bücher (16 February 1847, Kirberg, Hesse – 12 November 1930, Leipzig, Saxony) was a German economist, one of the founders of non-market economics, and the founder of journalism as an academic discipline. Biography Early life ...
,
Lujo Brentano Lujo Brentano (; ; 18 December 1844 – 9 September 1931) was an eminent German economist and social reformer. Biography Lujo Brentano, born in Aschaffenburg into a distinguished German Catholic intellectual family (originally of Italian desce ...
), * a middle one, which was characterized by the introduction of more economic theory (especially Robert Liefmann) and * a late one that was influenced by the entry into the organized economy of the German
Third Reich Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...
following the depression of 1929-1933 (see, for example, Heinz Müllensiefen).


The theory variants of the non-German countries

Outside of the German speaking countries, there were more or less similar theories of economic organization. These variants existed until the 1920s (in Italy until after 1945). However, they operated with different basic terms such as (in French) "syndicat", "accaparement", (in Italian) "sindacati", (in English) "combination" or "
trust Trust often refers to: * Trust (social science), confidence in or dependence on a person or quality It may also refer to: Business and law * Trust law, a body of law under which one person holds property for the benefit of another * Trust (bus ...
". In France Francis Laur and
Paul de Rousiers Paul de Rousiers (16 January 1857 – 28 March 1934) was a French social economist and industrial lobbyist. He was a follower of Pierre Guillaume Frédéric le Play, and believed in industrial syndicates that would be independent of both workers ...
, in Italy Francesco Vito, in the USA
Jeremiah Jenks Jeremiah Whipple Jenks (1856–1929) was an American economist, educator, and Professor at Cornell University, who held various posts in the US government throughout his career. He served as a member of the Dillingham Immigration Commission from 1 ...
and in the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...
Henry W. Macrosty as well as David H. MacGregor were authoritative writers on economic combinations.


Modern cartel theory

The modern cartel theory, which followed the classical cartel doctrine is essentially of American origin (
George J. Stigler George Joseph Stigler (; January 17, 1911 – December 1, 1991) was an American economist. He was the 1982 laureate in Nobel Memorial Prize in Economic Sciences and is considered a key leader of the Chicago school of economics. Early life and e ...
and George W. Stocking in the 1940s) It was based on the liberal view upon economy, which already had coined the traditional antitrust concept of the 1890s. The modern doctrine rejects cartels more or less fundamentally and is therefore not much interested in the internal organization of existing cartels, which are combated (and therefore only loosely institutionalized). Subsequently, modern cartel theory is quite oriented to pure
economic theory Economics () is the social science that studies the production, distribution, and consumption of goods and services. Economics focuses on the behaviour and interactions of economic agents and how economies work. Microeconomics analyzes ...
and to economic policy. The organizational-science aspects of the classical cartel theory did not find a continuation in modern cartel theory.


Differences between the two cartel theories

Modern cartel theory points out - much more committed than the classical one - to the detrimental consequences of a lack of competition that leads to overpricing, misallocation of capital and slowing down of technical progress in the economy. In this context, this doctrine has helped to develop the paradigm of
market failure In neoclassical economics, market failure is a situation in which the allocation of goods and services by a free market is not Pareto efficient, often leading to a net loss of economic value. Market failures can be viewed as scenarios where indi ...
, which must be avoided by means of an appropriate
competition policy Competition law is the field of law that promotes or seeks to maintain market competition by regulating anti-competitive conduct by companies. Competition law is implemented through public and private enforcement. It is also known as antitrust ...
. On the other hand, the disadvantages of unrestrained competition - such as unnecessary bulk goods transport, unnecessary
advertising Advertising is the practice and techniques employed to bring attention to a product or service. Advertising aims to put a product or service in the spotlight in hopes of drawing it attention from consumers. It is typically used to promote a ...
for mature goods,
brand A brand is a name, term, design, symbol or any other feature that distinguishes one seller's good or service from those of other sellers. Brands are used in business, marketing, and advertising for recognition and, importantly, to create ...
sales strategies - are highlighted in the classic cartel theory. Thus, these two directions of cartel studies feature conflicting, mutually exclusive economic concepts and neither of them can ideally solve the fundamental problem of entrepreneurial competition. Terminologically, classical cartel theory has yielded sophisticated definitions and classifications of cartel types that were based on material institutional criteria. By contrast, modern cartel theory is essentially normative. Its specific terminology depends on the respective competition law, its national version of the cartel ban and exemptions for useful cartels.


Cartel systems theory, general cartel theory

According to an analysis by Holm Arno Leonhardt, classical cartel theory can be understood (after a deconstructive adjustment) as an interdisciplinary
systems theory Systems theory is the interdisciplinary study of systems, i.e. cohesive groups of interrelated, interdependent components that can be natural or human-made. Every system has causal boundaries, is influenced by its context, defined by its structu ...
in the field of the
social science Social science is one of the branches of science, devoted to the study of societies and the relationships among individuals within those societies. The term was formerly used to refer to the field of sociology, the original "science of so ...
s.Leonhardt: ''Kartelltheorie und Internationale Beziehungen'', p. 192–197 Abstracted from the concrete circumstances of the individual types of competition, an overarching theory of the social system 'cartel' emerges. Leonhardt defines this through nine basic statements on the factors arena, actors, interactions, structures, functions, equilibrium condition, driving forces, development path and system environment: Groups of independent, homogeneous actors are on certain arenas (action fields) on the way. Their egoism leads to
competition Competition is a rivalry where two or more parties strive for a common goal which cannot be shared: where one's gain is the other's loss (an example of which is a zero-sum game). Competition can arise between entities such as organisms, indiv ...
and conflict. These are perceived as disturbing or threatening and lead to
collusion Collusion is a deceitful agreement or secret cooperation between two or more parties to limit open competition by deceiving, misleading or defrauding others of their legal right. Collusion is not always considered illegal. It can be used to att ...
on fairness rules and reconciliation of interests, e.g. by joint ventures. The adopted standards, agreements and projects need to be enforced and monitored, creating multi-stakeholder organizations –
cartel A cartel is a group of independent market participants who collude with each other in order to improve their profits and dominate the market. Cartels are usually associations in the same sphere of business, and thus an alliance of rivals. Mos ...
s. The equilibrium condition of the system is the win-win constellation: all members of a group want to benefit from it as well. The driving force that leads to cartel formation and successively condenses the associations on a development path to higher organizational forms is rationalization. The latter is only exhausted when an arena-wide organization has emerged and is fully developed, such as a
trust Trust often refers to: * Trust (social science), confidence in or dependence on a person or quality It may also refer to: Business and law * Trust law, a body of law under which one person holds property for the benefit of another * Trust (bus ...
corporation or a
world state World government is the concept of a single political authority with jurisdiction over all humanity. It is conceived in a variety of forms, from tyrannical to democratic, which reflects its wide array of proponents and detractors. A world gove ...
. In the economy this tendency is permanently suppressed by the
competition policy Competition law is the field of law that promotes or seeks to maintain market competition by regulating anti-competitive conduct by companies. Competition law is implemented through public and private enforcement. It is also known as antitrust ...
of the state. There is no such instance in international relations, so that the
world state World government is the concept of a single political authority with jurisdiction over all humanity. It is conceived in a variety of forms, from tyrannical to democratic, which reflects its wide array of proponents and detractors. A world gove ...
perspective remains in force.


Bibliography

* Harald Enke: ''Kartelltheorie. Begriff, Standort und Entwicklung''. Tübingen 1972. * Friedrich Kleinwächter: ''Die Kartelle. Ein Beitrag zur Frage der Organisation der Volkswirtschaft''. Innsbruck 1883. * Francis Laur: ''De l'accaparement. Essai doctrinal''. 1900. Paris: Publ. scient. & industr. *
Jeremiah W. Jenks Jeremiah Whipple Jenks (1856–1929) was an American economist, educator, and Professor at Cornell University, who held various posts in the US government throughout his career. He served as a member of the Dillingham Immigration Commission from 1 ...
(1903): ''The trust problem''. Several ed. 1900-03. New York: McClure. * David H. MacGregor: ''Industrial combination''. 1906. London: Bell. * Henry W. Macrosty: ''The Trust movement in British Industry. A study of business organisation''. 1907. London: Longmans, Green. *
Paul de Rousiers Paul de Rousiers (16 January 1857 – 28 March 1934) was a French social economist and industrial lobbyist. He was a follower of Pierre Guillaume Frédéric le Play, and believed in industrial syndicates that would be independent of both workers ...
: ''Les Syndicats industriels de producteurs en France et à l'Étranger. Trusts-Cartells-Comptoirs-Ententes internationales''. 2. ed. 1912. Paris: Colin. * Robert Liefmann: ''Kartelle, Konzerne und Trusts''. Several ed. within the 1920s. * Robert Liefmann: ''Cartels, Concerns and Trusts''. London 1932. * Francesco Vito: ''I sindacati industriali. Cartelli e gruppi''. 1930. Milano: Vita e pensiero. * Arnold Wolfers: ''Das Kartellproblem im Licht der deutschen Kartellliteratur''. München 1931. * Robert Liefmann: ''Cartels, Concerns and Trusts''. London 1932. * Heinz Müllensiefen: ''Freiheit und Bindung in der geordneten Wirtschaft: Kartellgesetzgebung und Marktordnung in der gewerblichen Wirtschaft''. Hamburg 1939. *
George J. Stigler George Joseph Stigler (; January 17, 1911 – December 1, 1991) was an American economist. He was the 1982 laureate in Nobel Memorial Prize in Economic Sciences and is considered a key leader of the Chicago school of economics. Early life and e ...
: ''The extent and bases of monopoly''. In: ''The American economic review'', Bd. 32 (1942), S. 1–22. * George W. Stocking: Cartels In Action (with M.W. Watkins). New York: Twentieth Century Fund 1946. * George W. Stocking: Cartels or competition? The economics of international controls by business and government (with M. W. Watkins). New York: Twentieth Century Fund 1948. * Wyatt C. Wells: ''Antitrust and the Formation of the Postwar World''. New York 2002. * Tony A. Freyer: ''Antitrust and global capitalism 1930–2004''. New York 2006. * Holm Arno Leonhardt: ''Kartelltheorie und Internationale Beziehungen. Theoriegeschichtliche Studien'', Hildesheim 2013. * Holm Arno Leonhardt: ''The Development of Cartel Theory between 1883 and the 1930s - from International Diversity to Convergence''. Hildesheim 2018
Online-Ressource


References

{{reflist Political terminology Cartels Economic theories