Ivan Kinkel’s (1883–1945) Theory of Economic Development
TL;DR: This paper presents and discusses the “Attempt at Constructing a New Theory of Economic Development and Cultural Cycles”, published by the Bulgarian economist and sociologist of Russian origin, Ivan Kinkel (1883–1945) in 1921. Kinkel’s theory, although unknown outside Bulgarian academic circles, carries a range of original ideas and new insights within the frame of the Schmollerprogramm. Author: Nikolay Nenov Nenovsky Published: The European Journal of the History of Economic Thought, 2015, Vol. 22, No. 2, pp. 272–299 DOI: 10.1080/09672567.2013.792367 Published online: 06 Sep 2013 Keywords: History of economic thought, historical school, Bulgaria, Russia JEL classifications: B10, B20, B30, N13, N14, G01
Abstract
This paper presents and discusses the “Attempt at Constructing a New Theory of Economic Development and Cultural Cycles”, published by the Bulgarian economist and sociologist of Russian origin, Ivan Kinkel (1883–1945) in 1921. Kinkel’s theory, although unknown outside Bulgarian academic circles, carries a range of original ideas and new insights within the frame of the Schmollerprogramm. It emphasises the importance of studying economic development as sociocultural evolutionary change, focuses on the role of unity in social life and the plurality of human motives and attempts to methodologically link theory and history into a multidisciplinary approach. Kinkel’s work in general, and his theory of cyclical development in particular, can not only be of value for the study of economic thought and the diffusion of ideas, but can also offer insights into the forces underlying the profound changes that we have been witnessing recently.
1. Introduction
The totalitarian and authoritarian regimes that came to power in the 1920s and 1930s led to the emigration of large groups of scholars, including economists. This movement, which manifested itself both physically and intellectually as a transfer and emergence of new knowledge, has been subject to numerous analyses mostly in relation to German-speaking economists and social scientists. The other large emigrant wave, that of the Russian-speaking economists who left Russia after the war, has also been studied, although to a much lesser extent and not as systematically. The lack of research is most obvious with regards to Russian economists from the Balkan countries, Bulgaria and Serbia mainly, where these economists were prominent and seen as major pillars of the economic and social sciences in the period between the two World Wars.
In the case of Bulgaria, mentioning just four of them would be sufficient to reveal the importance of Russian economists in the formation of economic science and theory in the country. The economists in question are Simeon Demostenov (1886–1966), Ivan Kinkel (1883–1945), Naum Dolinsky (1890–1968) and Oskar Anderson (1887–1960). The most internationally renowned among them is Oskar Anderson, one of the founders of statistical and business cycle analyses, who contributed greatly to the formation of a school of Bulgarian scholars and was in touch with the most prominent economists of his time. He was also mentioned in Schumpeter’s History of Economic Analysis and ended his career in Germany.
Among these, Demostenov and Kinkel are especially interesting as they epitomise the two main approaches to making economic science:
- Demostenov: the construction of a pure economic theory in isolation from other social spheres
- Kinkel: an economic methodology encompassing the syncretic unity with the sociological, psychological, historical and biological fields of analysis
Despite their fundamental differences, both stand out as vivid expressions of the encyclopaedic education, sophistication, and style of writing typical of the pleiad of Russian economists and social scientists of that period (including S. Bulgakov, P. Struve, M. Tugan-Baranovsky, J. Kulisher, N. Berdiyaev, S. Frank, A. Bogdanov, etc.).
Kinkel’s theory of economic development, set out in his work “An Attempt at Constructing a New Theory of Economic Development of Cultural Mankind” (completed in 1918, published with minor revisions in 1921), deserves attention for three reasons:
Peripheral contribution: It offers insights into the emergence of economic theory in the peripheral Balkan countries and demonstrates the diffusion of economic ideas and knowledge, understood within Schmoller’s project for systematic analysis of economic development.
Contemporary relevance: During periods of intense social and economic turbulence, it is necessary to revamp economic theory with the goal of identifying long-term patterns, phases and dynamic forces. Kinkel’s theory, created in equally critical times, offers ideas that could inspire new theoretical interpretations.
Post-communist context: The need to generalise and rationalise the period of post-communist development over the past two decades — a process that has been in the background for a long time.
2. A Brief Account of Ivan Kinkel’s Life and Work
Ivan Germanovich Kinkel — Bulgarian economist, Russian by origin and education — was born in Bryansk on 18 January 1883 and migrated to Bulgaria in late 1917. He left a lasting trail in a number of fields of scientific knowledge:
- Professor in economic history, economics and history of economic thought at the University of Sofia (1921–1945) and the Free University of Sofia (1920–1945)
- Founder and first chairman of the Bulgarian Sociological Society (1931–1939)
- Founder of psychoanalysis in Bulgaria (co-founder of the Psychoanalytic Circle in 1921)
Education
- Legal and economic sciences in Russia (Emperor’s College in Tsarskoe Selo)
- Medicine in Berlin (1903–1905)
- Social philosophy, graduated from the University of Leipzig (1906–1908); doctoral thesis on Aristotle’s theology (Summa cum Laude, 8 July 1911)
- Psychoanalysis in Zurich (1908–1911)
Biographical Notes
According to archival records (National Archive, 620/1/22 — the record of his wife, the sociologist Mara Kinkel, 1885–1960):
- Kinkel lost his right hand in the First Russian Revolution of 1905
- He was personally invited by Lenin at the beginning of October 1917 to chair the Supreme Economic Council; however, this nomination failed because of health issues
- Kinkel and his wife travelled to Bulgaria using a note written personally by Lenin to cross the Russian frontier
- Unfortunately, Kinkel had to destroy the note during their transit through Ukraine, which was at that time in the hands of the counter-revolutionary Nestor Makhno. In his wife’s recollections, Kinkel said he was losing the autograph of “the most influential man of our century, the maker of a new epoch”
Kinkel’s works extend to nearly all major social areas: economics, economic history, history of economic sciences, sociology, social psychology, law, philosophy, psychoanalysis. All these studies follow a major goal: to find and present his views on the mechanisms, driving forces and forms of social and economic development. His starting point — and life project — was his 1921 book on economic development and cultural cycles, which he further developed in various directions.
Ivan Kinkel died in Sofia on May 25, 1945.
3. Theory of Economic Development and Economic Cycles
In 1921, Ivan Kinkel published his fundamental study on economic development (312 pages), its cyclic character and dynamic forces.
Kinkel’s Own Summary (Thesis)
The economic development of cultural mankind has passed through three major cycles. The first cycle was the economic culture of the ancient Egyptians, Babylonians, Persians, Chinese and Peruvians characterized by common, distinct features for all these peoples. The second cycle was the culture of the peoples of Greece and Rome — once again having specific features of its own. The third cycle was the culture of the West and East European peoples (Slavs), which from the XIX century onward became a world culture. In each of these cycles national economies evolved from primitive forms to most complex ones which always passed through four periods of economic development: 1) family (corporate-collectivist and communist form); 2) petty-individual; 3) capitalist (in three different forms — types); 4) state-collectivist (state-collectivist-oriented trends, respectively).
Between the three world economic cycles exists a continuity of culture. The Greek-Roman culture repeated from the beginning the forms typical of the Egyptian-Babylonian culture to evolve thereafter along its own specific paths. The West-European culture too repeated from the beginning the forms of the first cycle, followed in the track and evolved the forms of the Greek-Roman culture, to come to its own unique new ways. The biogenetic law of development (phylogenesis — ontogenesis) is manifested in this continuity of the culture between the three cycles.
The dynamic forces of the economic progress of humankind have always been the growth of productive forces, of consumption forces and the cultural needs of society. The economic activity of mankind intensified under the influence of these factors with each of the three economic and cultural cycles evolving its economic-social organization in a direction to the above four successive forms, each next of which being more intensive and better suited than the preceding one in terms of production, consumption and common cultural values.
A comparison between the three world economic cycles indicates a specific economic progress from cycle to cycle as well. This is a slow and gradual evolution in the division, specialization and differentiation of labour alongside the progress of the organizational concentration from cycle to cycle. This development and advance would have as its ultimate state of perfection the creation of a world economic and social organization encompassing all productive forces of humanity. (Kinkel 1921, p. 305)
Two Analytical Levels
The periodisation operates on two levels:
Level 1 — Three Economic Eras (Cultural Cycles):
| Era | civilization | Approximate Period |
| I | Babylonian, Egyptian, Peruvian, ancient Chinese | 5000 to 700–550 BC (Egyptian-Babylonian); to 16th century (Peruvian); 4000 BC to 9th century (Chinese) |
| II | Greek–Roman | 1800 BC to 5th century AD |
| III | West and East European (Slavic), partly Arab–Muslim | Medieval period onward |
Level 2 — Four Economic Forms (reproduced within each era):
| Form | Description |
| 1 | Family, corporate-collectivist and communist economic form |
| 2 | Petty individual economic form |
| 3 | Capitalist form (agrarian, commercial and industrial capitalism) |
| 4 | State-collectivist economic form |
Dynamic Forces
The progress of economic or cultural periods is determined by:
At the Era level (exogenous):
- Division of labour
- Technological developments
- Population dynamics
At the Economic Form level (endogenous):
- Productive forces
- Consumption forces
- Cultural and social needs
Expressed as functional relationships:
Economic cultural era = f(division of labour, economic form) ≈ f(technology, population)
Economic form = f(productive forces, consumption forces, cultural needs) ≈ f(labour intensification, productivity and organisation of labour)
When a given economic form comes into conflict with the development of productive and consumption forces — “becomes too narrow for them” (to use Marx’s words) — a social change occurs, most often as social revolution.
Capitalism Across Eras
Kinkel’s view that capitalist relations existed in the ancient world was drawn from Eduard Meyer, Theodor Mommsen, Max Weber, Joseph Kulisher and others. This contradicts Marx’s interpretation where capitalism is an independent phase starting in the 18th century. Kinkel’s approach theoretically “undervalues” capitalism by placing it on a lower analytical level — not as a civilization era, but as an economic form that comes and goes in the alternation of the four forms.
Kinkel defines capitalism (form 3) as: the existence of large income in kind or in money; a large-scale (en grand) economy with a wide market; amalgamation of a large number of human work force, cooperation, and above all exploitation of free and unfree human labour. Capitalism existed in all three cultural periods but took different, progressively more complex forms:
- Egypt: agrarian capitalism on a professional principle and barter economy (3300–2000 BC)
- China: agrarian capitalism in Emperor period (2205–1766 BC)
- Greece: agrarian and commercial based on slave and wage labour (5th century BC to end of Alexander’s empire)
- Rome: similar (5th century BC to Emperor period)
- Medieval Europe: privilege-based agrarian feudal capitalism (to 13th century)
- Western Europe: agrarian-commercial-industrial market speculation capitalism (16th–18th century)
- Eastern Europe: same patterns with a century delay
The Fourth Form (State-Collectivist)
The fourth form inevitably comes after the capitalist economy in each era. In Egypt, Greece, Rome, and later in Western and Eastern Europe, this phase shows astonishing similarities: centralised planning, administrative and statistical control, nationalisation of labour, predominance of politics over economy.
Writing in the aftermath of WWI, Kinkel identified features of transition in the Bolshevik rule during War communism. He noted that phenomena like state shops, food rationing, destruction of money, state peasants, and state employees repeat the most primary forms of state economy from previous cultural periods (even as far back as Egyptian period). This system is characterised by power-based exploitation through political instruments.
Kinkel successfully foresaw the state-organised regimes emerging later in Europe (Mussolini in 1922, etc.). He later expanded this analysis in Economic System and Social Structure of Contemporary European Society (1930).
The Biogenetic Law of Social Development
Kinkel formulated the “law of social development” as a manifestation of a “universal biogenetic law of development” (originally formulated by biologist Ernst Haeckel):
Natural sciences thereby established the fact that a parallelism exists between the development of a higher species and the development of an entire kind of lower species […] Sociology, in turn, has fairly recently started to observe that the same parallelism exists between the spiritual evolution and art in primitive peoples with that of cultural man in childhood […] These statements mark the beginning of understanding that the biogenetic law of development is valid in the social area, and here its formula states that peoples and mankind in general repeat in their spiritual and social development the evolution of a single individual. (Kinkel 1921, p. 295)
Each new economic practice or activity (transport, finances, banking, communications), which emerged later in development, passes individually through the same phases as preceding social activities — and most importantly, at accelerated pace. This bears an astonishing resemblance to ideas of fractality of social and economic life (Benoit Mandelbrot): similar irregular processes and forms reproduced as mirror images on different system levels and scales.
Combination of Linearity and Cyclicality
Kinkel combined:
- Linearity and irreversibility of evolution in terms of eras (driven by technical progress and population dynamics)
- Cyclicality of economic forms within each era (forms reproduce themselves while never really repeating the old forms)
The three eras do not reproduce themselves — no cyclicality between them exists. They follow a single direction driven by technical progress. Kinkel also mentioned the existence of a new fourth wave (the “cycle of world culture” — what we would today call globalisation), but was extremely careful in his predictions.
Kinkel’s Critique of Other Theories
Kinkel systematically analysed the strengths and limitations of models by Friedrich List, Bruno Hildebrand, Karl Rodbertus, Karl Marx, Friedrich Engels, Karl Kautsky, Karl Bücher, Gustav Schmoller, Werner Sombart, Waldemar Mitscherlich, and others. His critiques:
- Rodbertus: Misinterpreted the economy of ancient times as being closed, domestic and natural
- Marx: Criticised for separating the feudal system from the capitalist one; questioned the Marxist law of dynamics as contradiction between base and superstructure
- Kautsky: Criticised for dating capitalism to the 18th century
- Bücher and German historical school: Criticised for “purely technical or organisational criteria” for periodisation
- Sombart: Admired for similarities with Kinkel’s ideas but rejected for “theoretical mess”; later criticised for his “Mediaeval-oriented pseudo-national socialist economy”
The only major scholar of economic development absent from Kinkel’s list is Schumpeter (1911 book). Kinkel mentioned Schumpeter only once, apparently considering him more preoccupied with Modern Capitalism while Kinkel’s theory had far-reaching objectives encompassing the economic development of the whole human civilization.
4. Interdisciplinary Approach to Social Phenomena
Kinkel’s range of topics and social scientific areas is so vast that to a modern scholar, accustomed to narrow specialisation, the diversity would look impossible. During the communist period, Kinkel was criticised for being “eclectic” — Kiril Grigorov called his models “kinkeliads”.
However, viewed against the encyclopaedic knowledge of Russian economists of that period (Bulgakov, Struve, Tugan-Baranovsky, Bogdanov), Kinkel is a competent and original author. Almost all his publications could be viewed as continuation of his theory of development — a kind of Kinkelprogramm.
Factors of Development Studied by Kinkel
Apart from economic factors, Kinkel systematically examined:
- Legal and political factors
- Religious and ethnic factors
- Scientific factors
- Aesthetic-artistic factors
- Ethical factors — examined in The Ethical Factor in Economic History (1930), showing the relativity of the relationship between economics and ethics across eras
- Natural factors — geography, climate, genetics, races — in Natural Factors in the Economic and Cultural Life of Peoples (1942)
- Biological factors — in Sociology and Biology (1939)
- Psychological factors (endogenous) — social and individual psychology
Psychology and Psychoanalysis
Kinkel’s interest in social and mass psychology (Le Bon, Tarde) was expressed in several studies, notably:
- Social Psychology in Revolutionary Movements (1924) — an analysis of revolutions from the viewpoint of psychology, psychoanalysis and medicine. Major manifestations of revolutions defined as: maniac psychosis, cyclophrenia, mass insanity, mania furiosa, mania persecutoria, paranoia, psychic epidemics, megalomania, euphoria, sexual extremities, alcoholism, drug addiction.
Key ideas:
“The psychological revolution should precede the social one” (Kinkel 1931, p. 54)
“The revolution dies politically because it has died previously in people’s psychology” (Kinkel 1924, p. 84)
“Degenerates often rise to positions of revolutionary leaders” (Kinkel 1924, p. 128)
Kinkel formulated the “law of psychological regression” of every revolutionary society on primitive psychic forms of behaviour, while also seeing revolutions as a form of creation and definite social advancement.
His article on psychology and religion (1921), published in German in 1922 following the recommendation of Sigmund Freud and Otto Rank, was translated into Swedish, Russian and English. In it, Kinkel proposed a periodisation of psychological development in three eras: animistic (magical-mythological), religious, and (from the 17th century) objective-scientific.
Sociology
Methods of Knowledge of Contemporary Sociology (1931, 200 pages) systematically presented Kinkel’s sociological approach. He was considered one of Bulgaria’s groundbreaking sociological authors. Key methodological positions:
“To contemporary sociology […] such a faith or dogma [about one factor] already appear to be absolutely impossible. From the perspective of the entire contemporary knowledge of society we must acknowledge the outdatedness of the view about the existence of only one such factor…”
“A universal sociological method encompassing and explaining all phenomena of social life is not applicable nowadays as it would be scientific absurdity” (Kinkel 1931, p. 193)
The only true method is the eclectic or synthetic-eclectic method — methodological monism that overstates certain factors (especially economic) is rejected as a “universal phlogiston.”
Political Analysis
In the mid-1930s, Kinkel applied his approach to:
- Crisis of parliamentary and party democracy
- Emergence of authoritarian regimes
- Evolution towards planned economy and autarchy
- Analysis of fascism (published under pen names M. Mladenov and A. Fridyung due to the extremity of his views)
Kinkel’s analyses of fascism in many respects foretold the interpretations of classical authors (such as De Felice, 1969).
Historical-Comparative Approach
Kinkel applied the historical, comparative and evolutionary approach to both individual economic and social institutions and society as a whole. Notable studies include:
- The Bulgarian economic culture of proto-Bulgarians (1926)
- The Renaissance economy (1938, 1939)
- Critiques of Jacques Nathan’s Marxist approach to Bulgarian economic history
- Critiques of Ivan Sakuzov’s purely factual approach to trade and crafts in Bulgaria during the Middle Ages
Kinkel criticised both extremes: Nathan for applying a purely philosophical/Marxist template without facts, and Sakuzov for presenting facts without theoretical analysis.
5. Concluding Remarks
What follows from Kinkel’s theory of economic development:
Filling gaps: Studying Kinkel’s work is part of “bridging the gaps” in the history of economic and social thought in Bulgaria and Europe, and the history of emigration of Russian economists in the interwar period. His theory of economic development and cultural cycles is an original input of world significance.
Within the Schmollerprogramm: Kinkel’s work is a valuable contribution alongside the youngest historical school (Weber, Sombart, Schumpeter), and as a representative of the famous generation of Russian economists and social scholars from the early 20th century.
Contemporary resonance: Many of Kinkel’s ideas have contemporary methodological and theoretical relevance. We need a longer-term historical perspective to capture social trends and patterns. These trends are not deterministic and always carry new elements, new processes and new forms. We should investigate society over longer historical periods and not just focus on currently existing states and problems.
Supplementary Context
Bogatzky (2015) — “Fundamental Principles and Factors of Economic Development According to Kinkel”
A companion paper by Nikolay Bogatzky (Università degli studi Niccolò Cusano), published December 2015, further popularises Kinkel’s ideas on the 70th anniversary of his disappearance. Key points from this paper:
“The popularization of Ivan Kinkel’s ideas on the principles and factors of economic development could be seen not only as a contribution to his memory, but also as a service to the scientific community, to which this scholar is almost unknown. Studying Kinkel’s heritage is configured primarily as ‘filling the faded pages’ in the European history of economic and social thought, as well as a necessary memory’s revision of the scientist, mostly misinterpreted, in the 70th anniversary of his disappearance.”
“One of the main recommendations arising from Kinkel’s reflection is the need to examine the historical society in longer periods and not to focus only on the conditions and problems of the moment; in addition, the interdisciplinary method should be re-evaluated.”
Source: ResearchGate
Principal Works of Ivan Kinkel
In Bulgarian
| Year | Title | Publication |
| 1921 | Attempt at constructing a new theory of economic development | AUS (FL), 1–312 |
| 1924a | Social psychopathy in revolutionary movements | AUS (FL), 1–167 |
| 1924b | Science and Religion in the Light of Psychology | Sofia: Science and Education |
| 1925a | A Course in Comparative History of Contemporary Economic Systems | Sofia: University Library, N 47 (2nd ed. 1947) |
| 1925b | Theories of Value in Political Economy | Sofia: Litopechad |
| 1926 | The economic culture of the Proto-Bulgarians (V–XIV century) | AUS (FL), 22: 1–141 |
| 1930a | The ethnic factor in economic history | AUS (FL), 25: 1–158 |
| 1930b | The Economic and Social Structure in Contemporary European Society | Sofia: Napred |
| 1931 | Methods of knowledge in modern sociology | AUS (FL), 26: 1–202 |
| 1932 | Review of the Habilitation of Dr. Ivan Sakazov | AUS (FL), 1–20 |
| 1933a | The present and future of fascism | AESP, 8 (2): 88–115 |
| 1933b | Socio-political meaning of Fascism as a social movement | AESP, 8 (1): 9–32 |
| 1933c | Is planned economy possible in a capitalist economic system? | AESP, 8 (3): 189–202 |
| 1934 | The crisis in the parliamentary and democratic regime | AESP, 9 (3): 193–216 |
| 1935 | The German socialism of Pr Sombart [as M. Mladenov] | AESP, 10 (1): 32–9 |
| 1936 | Economic doctrines from Ancient Times through the classical school | AUS (FL), 31: 1–148 |
| 1937a | Economic autarchy as a system of economic policy | AESP, 12 (1): 7–36 |
| 1937b | The economic sciences in their historical development in XIX century | AUS (FL), 32: 1–150 |
| 1938a | European and Christian Ethics: Similarities and Differences | Sofia: Stopansko razvitie |
| 1938b | Methodological corrections on Jacques Nathan’s Work | JBES, 37 (7): 437–48 |
| 1939a | Modern schools of economic thought from end-XIX century | AUS (FL), 5: 36–176 |
| 1939b | Notes on Bulgarian Economic History | Sofia: Litopechat |
| 1939c | Sociology and biology | AUS (FL), 35: 1–172 |
| 1941 | Thomas Malthus’s doctrine and current global developments | JBES, 2: 91–108 |
| 1942 | Natural factors in the economic life of peoples | AUS (FL), 37 (2): 1–119 |
| 1943 | Fundamentals and factors of economic development | ASSFAS, 3: 1–43 |
| 1934 | The global economic crisis [as A. Fridyung] | AESP, 9 (4): 302–27 |
In German
| Year | Title | Publication |
| 1911 | Die Sozialökonomischen Grundlagen der Staats- und Wirtschaftslehren von Aristoteles | Leipzig: Dunker und Humblod, Zweiter Teil, pp. 94–123 |
Abbreviations
| Abbreviation | Full Name |
| BAS | Bulgarian Academy of Sciences |
| AESP | Archive for Economic and Social Policy |
| HSC | Higher School of Commerce, Varna |
| ASSFAS | Annual of the State School of Financial and Administrative Sciences, Sofia |
| AUS (FL) | Annual of the University of Sofia, Faculty of Law |
| JBES | Journal of the Bulgarian Economic Society |
| NL | St. St. Cyril and Methodius National Library |
References Cited in Nenovsky (2015)
In Bulgarian and Russian
- Atanassov, N. (1997). Psychoanalytical Movement During the Interwar Period. Sofia: BAS, Marin Drinov Publishing House.
- Bekyarov, K. (2010). Economic Thought in Bulgaria From Mid-XIX to Mid-XX Century. Sofia: Stopanstvo.
- Bulgakov, S. (2007 [1913–1917]). History of Economic and Social Science. Moscow: Astrel.
- Danailov, G. (1934). Fundamentals of Political Economy, 2nd ed. Plovdiv: HR.G. Danov.
- Danailov, G. (1933). Report on Dr. Ivan Sakuzov’s works. AUS (FL), 1–16.
- Egorova, L. (2008). East European Sociology. Kazan: Kazan State University.
- Gloveli, G. (2008). Historico-stadial and Evolutionary Conceptions in Russian Economic Thought. Moscow: Institute of Economics.
- Golenkova, Z. (2011). History of Sociological Thought in Central and Eastern Europe. Moscow: Peoples’ Friendship University.
- Grigorov, K. (1960). Development of the Bourgeoisie Economic Thought in Bulgaria Between the Two World Wars. Sofia: Nauka I Izkustvo.
- National Library. (2008). Russian Emigration in Bulgaria (1878–2006). Sofia: National Library.
- Penchev, P. (2012). Professor Ivan Kinkel as Theoretician of Economic History. Sofia: UNWE.
- Struve, P. (1913). Economy and Price. St. Petersburg: V. Ryabushinskii.
In Western Languages
- Atanassov, N. (2002). Psychotherapy in Bulgaria. In A. Pritz (Ed.), Globalized Psychotherapy. Vienna: Facultas, pp. 1–16.
- De Felice, R. (2005 [1969]). Le interpretazioni del fascismo. Roma-Bari: Laterza.
- Ebner, A. (2000). Schumpeter and the Schmollerprogramm. Journal of Evolutionary Economics, 10: 355–72.
- Iorga, N. (1925). Histoire Des États Balkaniques Jusqu’à 1924. Paris: Gamber.
- Johansson, M. (2006). Om psykoanalys på svenska. Psykoanalytisk Tid/Skrift, 6–8.
- Langer, W. (1958). The next assignment. American Historical Review, 63 (2): 283–304.
- Peukert, H. (2001). The Schmoller renaissance. History of Political Economy, 33 (1): 71–116.
- Schefold, B. (2011). Marx, Sombart, Weber and the debate about the genesis of modern capitalism. ESHET Conference, Istanbul.
- Schmoller, G. (1905/1906 [1900]). Principes d’économie politique. Paris: Giard & Brière.
- Shionoya, Y. (2001). Rational reconstruction of the German Historical School. In The German Historical School. London: Routledge.
- Spahn, P. (2004). Weber et la typologie des modes d’activité industrielle de Karl Bücher. Les Cahiers du Centre de Recherches Historiques, 34: 1–16.
Note on Portraits
No photograph or portrait of Ivan Kinkel was found in any of the source documents (the Nenovsky 2015 paper, the Bogatzky 2015 paper, or the ResearchGate figure pages). The paper contains only two diagrams: Figure 1 — Periodisation of economic development according to Ivan Kinkel and Figure 2 — Factors of economic development in Kinkel’s model. Given Kinkel’s obscurity outside Bulgarian academic circles and his death in 1945, a photographic portrait may exist only in Bulgarian university archives or the National Archive holdings related to Mara Kinkel (fund 620/1/22).
Keywords: #Nenovskykinkelejhet2015 #Ivan #Kinkel #Economic #Development
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