The Role of Women in a Family Economy. A Bibliometric Analysis in Contexts of Poverty

The concept of family economy in the context of extreme poverty is of interest when it comes to analyzing the strategies displayed to prevent or reduce the effects of this situation of exclusion. Gender roles in the nucleus of the family institution will indicate the distribution of these tasks, so that we can understand, in the case of the role of women, the specific weight of their actions in this scenario. For this work, an investigation of our object of study was carried out for the period 1968–2019. A bibliometric analysis of 2182 articles was carried out in which the final versions of articles, books, and book chapters whose subject matter was related to the categories of family economy and poverty were included. The most productive journal was the Journal of Development Economics, while World Economies was the most cited. The authors with the most articles were Ravaillon, Sadoulet, and Lanjouw. The most productive institution was the World Bank. The country with the most publications and citations was the United States. Future research should focus on analyzing the role of women within the family economy in the context of poverty. Thus, a line of research is proposed that also includes the proposals from the 2030 Agenda for Sustainable Development and its 17 Sustainable Development Goals, which means an urgent call for action by all countries.


Introduction
In contemporary societies, the concept of family has evolved or diversified into different models that suggest we reconsider the meaning, structure, and relationships that are established in the current family context. All these cultural, social, economic, and normative changes are, in certain societies, shaping these new modalities and roles in the family scenario. The logics of the new models of production, the relationships established in the globalization, or the incorporation of women into the labor market-and thus the establishment of conciliation measures-would be some socio-economic phenomena that could explain the changes to which we refer to in the sphere of the family.
In the context of center-periphery relations, and taking into account the scenarios of structural poverty, the family is also considered as one of the cultural institutions affected by the logic of the hegemonic economic systems in each historical moment [1,2]. In this sense, we can observe how the so-called traditional family, the modern family, or the different current family modalities would be linked to different historical moments of predominance of the domestic or agrarian economy, Sustainability 2020, 12, 10328 5 of 23 We can see that in many cases, these articles collected in Table 1 are concerned with studying family economic activity-either in relation to the strategies carried out in the family nucleus, or in evaluating the impact of social and economic aspects in this nucleus-in a rural context. This corresponds to a research tradition from sociology, economics, and anthropology, which, from the 1960s on, is interested in studying the phenomenon of decision-making in family units in rural contexts, mostly linked to the area of the so-called developing countries. In the table, we can see that the article by Ellis (1998) ranked as the most reviewed on this matter, effectively dealing with household strategies and rural livelihood diversification.
Finally, we must mention the "institutional" references to the concept of poverty. In this sense, the United Nations refers to the fact that poverty entails more than the lack of income and productive resources to ensure sustainable livelihoods. Its manifestations include hunger and malnutrition, limited access to education and other basic services, social discrimination and exclusion as well as the lack of participation in decision-making.

Family Economy and Modes of Production: Domestic Work
From the 30s, we can find the theses of economists [56,57] that question the precepts of those called neoclassicals who considered production and consumption as two isolated events. In other words, the interpretation that companies-public and private-are responsible for productive activity, while individuals and families deal exclusively with consuming. In response to this perspective, also called formalist [58,59], the proposals of the so-called substantivists arise, those interested in studying the economic activities linked to the other cultural institutions [60,61].
These authors understand that the economic sphere, which is emancipated from the rest of the social and cultural institutions in concrete historical sequences, will determine the structure and behavior of the rest of social constructs, among them, kinship relationships. Following this thesis, in archaic societies or traditional communities, the economy would be "embedded" in the remaining social institutions. This would imply that the "economic event" occurred as "a momentary episode in a continuous social relationship" [62]. In contrast, the logic of the capitalist production system would propose a different scenario, limited in time and space, where capital accumulation becomes an end-in-itself, detached from the other cultural institutions.
It will be these theses that encourage different researchers to carry out field work in developing countries or the so-called Third World, thus trying to contrast the reality of the so-called industrialized European societies with economic and family relationships in other contexts. Two fields of interest will thus emerge: the so-called peasant studies and the study of economies or domestic work.
Regarding peasant studies, it is from 1980 when the studies on the peasantry began to generate a theoretical body of interest from sociology and economics. However, from the field of social and cultural anthropology, we could refer to previous works that, starting in the 1930s, are interested in the study of human communities in rural areas without the concept of peasants still having an analytical value [63][64][65]. Precisely, in this area of peasant production, these first works refer to two elements as fundamental to explain the reproduction of this type of economy: the use of family labor power and the lack of capital accumulation. In this debate, the concept of simple mercantile production is introduced, which explains the existence of this mode of production together with the hegemonic capitalist production system [66].
On the other hand, domestic economies cannot be understood outside the context of the imperatives of the market and, therefore, of wage labor [67]. In this respect, different feminist studies, which we will refer to in the next section in more detail, have shown how the forms of unpaid work carried out in the home are an integral part of the capitalist system. They have questioned that the market is the only standard of value and have called attention to the importance of unwaged work, supply and maintenance activities, socialization processes, and the transmission of cultural knowledge [68].
It is very interesting for the review that we offer here to address the distinction that, in the context of these domestic economies, some authors make between self-provisioning activities and domestic work itself. The former would be linked to those tasks aimed at subsistence itself, without dealing with market relations. In contrast, the second type of non-commodified activities [22] would be constituted by this domestic work itself. Like the previous one, it would be carried out outside the market, but its function in the social-family-and economic system would be very different: upbringing, caring for the sick and elderly, and feeding.
This domestic labor, unlike provisioning, does not affect the value of labor power for two reasons: first, because it is carried out in social relations outside the market, and second, because it does not affect the socially necessary labor time for producing the means of subsistence [69]. Precisely, this non-commercialized work will be more important in the countries of the "periphery" due to the lower presence of wage labor and the existence of simple commercial production. Therefore, as different authors explain, forms of work-and specifically this relationship between the domestic economy and "peripheral countries"-must be analyzed in specific contexts, and thus interpret how they combine and interact [70][71][72].
Therefore, when analyzing the family context in terms of its division of labor, we can find contradictions. We can find, on the one hand, domestic strategies that would imply a distribution of roles and a display of solidarity among the members. At the same time, it would be about relationships of a conflictive nature as they are linked to forms of internal hierarchy and domination, family reproduction being an integral part of the reproduction of social classes [73].

Gender Relations and Reproduction in the Context of the Family Economy
From the aforementioned Marxist approaches, which propose that concept of articulation of different modes of production, they refer to the concept of reproduction to explain the survival and operation of certain modes of production. In this sense, and from a feminist studies perspective, the division of labor is considered as the central axis that explains the subordination of women in the context of the family economy [74][75][76][77][78].
We find ourselves before that production/reproduction binomial, which Marx had already introduced in his drawing of the conceptual scheme of capitalism [79], which reflects the separation between work environment and family environment. From Marx's own proposal and works raised from an anthropological perspective-the aforementioned substantivists and those Marxist approaches from the 70s-it is argued that there is no "reproductive sphere" separate from the productive one. It is understood, therefore, the idea of the economy embedded in the other social and cultural institutions, so that the reproductive is part of the family's own productive sphere.
Along this line of trying to unravel the concept-and their alleged differences-of production and reproduction in the family context, we can find authors who establish a distinction between three types of reproduction. A distinction is made between human or biological reproduction, the reproduction of work and social reproduction. It is noted that each level indicates different meanings of abstraction, each of which represents different implications for gender relations [80,81]. In this network of representations in the work context, typical of a specific cultural system, Yanagisako and Collier point to the existence of more complex binomials [82]. On one hand, one that contains material aspects-technology-participation of both genders-paid activity-factory-money and, on the other, people-biology-female-activity without salary-family-love [83]. It is a highly relevant approach, since it allows for the establishment of broader and more complex analytical categories to interpret the entire set of functions and institutions linked to the socio-cultural process of the family economy and gender relations in their context.
In the context of poverty in which we settle, it would be interesting to point out those works that, from the anthropological discipline, analyze the domestic sphere as a framework for broad reproduction. Thus, the work of Meillassoux (1977) in African communities analyzes how wealth-the accumulation of capital-would come from the ability to have broad lineages, so that the concept of polygamy would allow the appropriation of the reproductive capacities of women [84]. In this respect, the domestic economy would be the basis of operation of this type of subsistence economy, and at the same time, Sustainability 2020, 12, 10328 7 of 23 the articulation between this type of economy with capitalism in its expansion phase and co-existence with these domestic economies. There are criticisms of this proposal, and they interpret that this author assumes the subordination of women in this context, also contemplating women only in their role of subordination-reproduction [85].
Along the same lines, we found research on domestic work, the informal economy, or even forms of self-sufficiency that indicate the significant weight of unpaid activities. It was interpreted in this case as a set of subsidiary activities, unpaid, but of great importance in defraying the costs of the labor force and, therefore, contributing to the social and cultural reproduction of the family unit [67,86].

Data and Methodology
To carry out this research, the application of the bibliometric analysis technique was used for a sample of 2182 articles from 1968 to 2019. The sample was obtained from the Scopus database, in which the final versions of articles, books, and book chapters whose themes are related to the family economy and poverty.
All analyses were performed using the bibliometric method [87][88][89]. Through this method, which has been used in more than 3200 investigations, the most relevant aspects of the subject under study were identified and described. Mainly, aspects such as evolution, trends, key actors (authors, countries, journals, institutions), and the identification of keywords and semantic structure of research [90,91]. These last two variables were represented by bibliometric maps constructed with VOSviewer software, version 1.6.11., Leiden University, Leiden, The Netherlands. In this regard, Figure 1 represents the main stages of our study.

Data and Methodology
To carry out this research, the application of the bibliometric analysis technique was used for a sample of 2182 articles from 1968 to 2019. The sample was obtained from the Scopus database, in which the final versions of articles, books, and book chapters whose themes are related to the family economy and poverty.
All analyses were performed using the bibliometric method [87][88][89]. Through this method, which has been used in more than 3200 investigations, the most relevant aspects of the subject under study were identified and described. Mainly, aspects such as evolution, trends, key actors (authors, countries, journals, institutions), and the identification of keywords and semantic structure of research [90,91]. These last two variables were represented by bibliometric maps constructed with VOSviewer software, version 1.6.11., Leiden University, Leiden, The Netherlands. In this regard, Figure 1 represents the main stages of our study.

Main Stages in the Process
The period of analysis selected (1968 to 2019) contained scientific articles related to family economy and poverty. This period included the first paper "Negative taxation and poverty", published in 1968 by Bender and Green [92]. This wide selection aims to improve our understanding of the five approaches identified in the state-of-the-art and looks to go deeper in the poverty evolution trends in the economy of family or household. The bibliographic indicators included in this study are: the annual number of papers, the number of papers per author (A), the total number of citations per author (C), number of countries, the annual number of citations, the number of journals and institutions as well as the evolution trends of the poverty and family economy field in accordance with the keywords emergence ( Table 2). In this sense, the methodology used was to perform a complete search in the Scopus database, using a search string with the terms "family" or "household" and "economy" to examine the subfields of the title, abstract, and keywords during a period

Main Stages in the Process
The period of analysis selected (1968 to 2019) contained scientific articles related to family economy and poverty. This period included the first paper "Negative taxation and poverty", published in 1968 by Bender and Green [92]. This wide selection aims to improve our understanding of the five approaches identified in the state-of-the-art and looks to go deeper in the poverty evolution trends in the economy of family or household. The bibliographic indicators included in this study are: the annual number of papers, the number of papers per author (A), the total number of citations per author (C), number of countries, the annual number of citations, the number of journals and institutions as well as the evolution trends of the poverty and family economy field in accordance with the keywords emergence ( Table 2). In this sense, the methodology used was to perform a complete search in the Scopus database, using a search string with the terms "family" or "household" and "economy" to examine the subfields  Table 3 shows the evolution of the main characteristics of the volume of articles published on the family economy and poverty from 1968 to 2019. The time horizon of the study, 51 years, was divided into four-year periods, in order to facilitate the analysis. In this time horizon, interest in research on this subject has been constantly increasing, especially since the beginning of the 20th century.

Evolution of Scientific Production
Thus, while in the first period (1968)(1969)(1970)(1971) only two articles were published on this topic, in the last four-year period analyzed (2016-2019), the number rose to 539, that is, practically 270 times more. The increase in the number of publications is especially accentuated in the last four years, where 24.7% of the total articles published in the analyzed period were published with 539 articles. In this same sense, during the last eight years (2012-2019), 45% of the articles (978) were published, with 2019 being the year in which the most publications were obtained, with 164. It is clear that the renewed interest in this issue may be due to the promotion of the Sustainable Development Goals of 2015, which places poverty as a priority objective.
During the period under review, the total number of authors who contributed to this research topic was 4339. As with the volume of articles, the total number of authors also increased in geometric progression during the period analyzed. In the last four years (2016-2019), 32.2% of the total authors of the 51-year period are concentrated. Regarding the average number of authors per article, if in the four-year period 1968-1971, the average number of authors per article was 1.5, in the last period (2016-2019) it increased to 2.6, that is, this was the four-year period with the highest average in the time horizon studied. In this regard, it should be noted that the increase in the number of co-authors per article is a growing trend in all disciplines. On the other hand, in the period analyzed (1968-2019), the total number of countries that have contributed to the publication of articles related to this topic was 133. Thus, the number of countries has increased from two (1968)(1969)(1970)(1971) to 94 (2016-2019).
Unlike other studies, the first articles on the subject tended to receive a significant number of citations, and the two articles published in the first period (1968)(1969)(1970)(1971) only received one appointment. From there, over the years, the following articles have focused on the subject and the main lines of research. Thus, in the last four-year period analyzed (2016-2019), the number of citations amounted to 1781, that is, an average of 3.3 citations per article, despite the fact that this four-year period contained the most recent articles and, therefore, they did not receive all possible appointments.
Finally, the total number of journals where articles on this subject were published was 1166 throughout the time horizon. Thus, it increased from 2 o'clock in the first period examined to 381 o'clock in the last four years (2016-2019), which also represents 32.7% of the total number of journals for the entire period analyzed. Figure 1 shows the evolution in the number of articles as well as the polynomial adjustment that can be made to the evolution in this series. In addition to the notable increase in the number of articles published in the last eight years, the perfect parabolic adjustment obtained stands out, which denotes a more than proportional growth in the number of articles in the entire series analyzed. It is an ever-increasing curve, in geometric progression, in which none of the sections analyzed showed a decline in the number of articles published, with respect to the immediately previous period.

Distribution of Publications by Subject Area and Journal
During the time horizon analyzed of 1968-2019, there were various categories where works related to the relationship between poverty and the family economy have been found. According to the Scopus classification, there were a total of 27 subject areas in which the 2182 articles in this sample were classified. In this regard, we have to inform that an article may be classified in more than one subject area, depending on the author and publisher's own interest.
Thus, Figure 2 presents the evolution of the seven main thematic areas where Scopus links the articles on the research topic during the time horizon examined (1968-2019).
The first three categories, Social Science, Economics, Econometrics and Finance and Environmental Science, were the only subject areas that had articles published in all four-year periods analyzed.
The association of the publications with the theme of this article led us to believe that the social and economic aspects were the most relevant in the analysis of poverty and the family economy, although the environmental, medical and field aspects cannot be lost sight of in rural areas.  Table 4 shows the characteristics of the articles from the main journals on the global research on poverty within the framework of the family economy. In the ranking of the 20 journals with the most published articles, the high percentage of journals (75%) that belonged to the first quartile (Q1) of the 2019 SJR index stands out. Furthermore, the greatest impact factor, SJR, was presented by the Journal of Development Economics with 3.585 (Q1), followed by Economic Development and Cultural Change with 3.483 (Q1).
World Development was the journal that had published the most articles in the time horizon considered (75, 3. It has been observed that, over the years, the research topic has been attracting more journals and authors, as shown by the growth in the number of articles and the variety of interested journals. Thus, by country, those of European origin stand out: the United Kingdom (13) and Netherlands (3), followed at a certain distance by American magazines (3).
Finally, it is important to note that none of the pioneering journals in the study of poverty and the family economy is in the top 20 that is presented in Table 4. This is the case of the Annals of The The Social Science category is the outstanding one during the entire period studied, with 39% of the articles published (1400) in this category. They are followed, in order of importance, by the categories Economics, Econometrics, and Finance (19%, 686), Environmental Science (8.5%, 304), Medicine (6%, 214), Agricultural and Biological Sciences (5.8%, 210), Business, Management, and Accounting (5.1%, 185), and Arts and Humanities (5.1%, 182). Thus, the seven most prominent categories represent 88.5% of the documents published from 1968 to 2019. Furthermore, the other subject areas did not exceed 2.5% of the total articles published.
The first three categories, Social Science, Economics, Econometrics and Finance and Environmental Science, were the only subject areas that had articles published in all four-year periods analyzed.
The association of the publications with the theme of this article led us to believe that the social and economic aspects were the most relevant in the analysis of poverty and the family economy, although the environmental, medical and field aspects cannot be lost sight of in rural areas. Table 4 shows the characteristics of the articles from the main journals on the global research on poverty within the framework of the family economy. In the ranking of the 20 journals with the most published articles, the high percentage of journals (75%) that belonged to the first quartile (Q1) of the 2019 SJR index stands out. Furthermore, the greatest impact factor, SJR, was presented by the Journal of Development Economics with 3.585 (Q1), followed by Economic Development and Cultural Change with 3.483 (Q1).
World Development was the journal that had published the most articles in the time horizon considered (75, 3. It has been observed that, over the years, the research topic has been attracting more journals and authors, as shown by the growth in the number of articles and the variety of interested journals. Thus, by country, those of European origin stand out: the United Kingdom (13) and Netherlands (3), followed at a certain distance by American magazines (3).  Finally, it is important to note that none of the pioneering journals in the study of poverty and the family economy is in the top 20 that is presented in Table 4. This is the case of the Annals of The American Academy of Political And Social Science and Canadian Journal of Agricultural Economics, which were the first to publish articles on this subject in the first four-year period (1968-1972). Table 5 presents the main variables of the articles written by the most prolific authors during the period 1968-2019. It is noteworthy that four authors in this ranking are of American origin and only three are of European origin (Netherlands, Germany, and the United Kingdom). This situation is in contrast with the relevance of the most important journals on this subject in which European authors do not present the largest number of published articles. The most productive author on the research topic is Martin Ravallion, from the University of Malaysia, with nine published articles, followed by the American, Sadoulet (9) and the Dutch Lanjouw (8), from the University of California and the Vrije Universiteit Amsterdam, respectively. In any case, Martin Ravallion, despite the fact that he was not the first to start writing about this subject, since his first article was from 1995, was the author with the highest number of articles, with the highest number of citations (311), and consequently, with a higher average number of citations per article (34.56). In addition, Ravallion also stands out with the highest h-index (9), followed by Sadoulet and Lanjouw, with a record of 8 each. In this ranking, none of these authors had published in 2019, the last year of the sample, so we could expect some changes in the top ten in the next years. Figure 3 shows the map of collaboration between the main authors who have published on poverty in the family economy, based on the co-authorship analysis. In this figure, the colors represent the different clusters formed by the work communities in the production of articles, while the size of the circle varies according to the number of articles published by each author in the sample. The network showed a great dispersion in the association of authors by co-authorship during the period analyzed (1968-2019). Thus, it was observed that the limited scientific collaboration between authors also promoted the scope of the subject, since several of the most prolific authors did not collaborate assiduously with a stable network of authors. In Figure 3, the red cluster was formed by Huanj, J. and Rozelle, S, which had the largest collaboration network. However, none of the first three authors in Table 5 appeared to participate in an international collaboration network on poverty and family economy. poverty in the family economy, based on the co-authorship analysis. In this figure, the colors represent the different clusters formed by the work communities in the production of articles, while the size of the circle varies according to the number of articles published by each author in the sample. The network showed a great dispersion in the association of authors by co-authorship during the period analyzed (1968-2019). Thus, it was observed that the limited scientific collaboration between authors also promoted the scope of the subject, since several of the most prolific authors did not collaborate assiduously with a stable network of authors. In Figure 3, the red cluster was formed by Huanj, J. and Rozelle, S, which had the largest collaboration network. However, none of the first three authors in Table 5 appeared to participate in an international collaboration network on poverty and family economy.   The World Bank is the most prolific institution with 83 articles as well as the one with the highest number of citations: 3580 and also has the highest h-index: 31. However, the highest average number of citations was obtained by works attached to the University of California, with 59.7 citations per article, followed by the World Bank, with 43.1 citations per article.

Main Institutions and Countries
On the other hand, Wageningen University & Research was the institution with the highest percentage of international collaboration (77.78%). However, this international exposure does not translate into more citations than in the case of articles written without international co-authorship. Only at the World Bank and Wageningen University & Research has international co-authorship been profitable, since the articles published by these institutions have a much higher number of international citations of 53.11 and 57.67 citations per article, respectively. Table 7 lists the main variables of the countries with the highest scientific production on poverty and the family economy. In view of the results, it was observed that United States was the country with the most publications (593) and with the highest h-index (65). In addition, it was the country with the highest number of citations: 12,659, that is, ten times more than the average of the top ten countries listed in Table 7. This result is closely linked to the importance that the World Bank has in international scientific production and influences the number of publications that are assigned to the United States. The second country with the highest number of articles is the United Kingdom (304), although it holds the first position in terms of the average number of citations (25.70 citations per article). The sample of countries that appeared in the top ten suggests the importance of Anglo-Saxon publications, since the most relevant countries in this subject of study are linked to the United States and countries that are part of the Commonwealth.
The United States has also led the ranking of the most productive countries since 1980. Only in the four-year period of 1976-1979 did the United Kingdom surpass the United States in the number of articles related to poverty and the family economy. In the last four years (2016-2019), China has come to occupy the fourth position, after India, with 34 articles, which represents 40% of its total production (85 articles). In the future, this inertia is sure to consolidate China and India at the top of this table. In contrast, the Netherlands, which was in fourth position in the four-year period of 2004-2007, was in 26th position in the last period.
In short, the United States, United Kingdom, India, China, and South Africa are the main driving countries for research topics related to poverty and the family economy. Specifically, these five countries grouped 51.6% of the total articles in the sample. Table 8 shows the variables related to international collaboration between the different countries, ordered by scientific productivity in the period examined (1968-2019). The countries with the highest percentage of work carried out through international collaboration were the Netherlands with 60.94% (36 countries), followed by France (55.56%, 27 countries), Germany (54.02%, 36 countries), and China (52.94%, 16 countries). In this ranking, India was the country with the lowest percentage of international collaboration (32.52%, 14 countries).
On the other hand, it is noteworthy that, except for the United Kingdom and the Netherlands, in the other countries in Table 8, the average number of citations of articles with international co-authorship was higher than those made without these collaborations. Figure 4 shows a map of collaboration between the main countries based on the co-authorship analysis. The different colors represent the different clusters formed by the groups of countries, while the diameter of the circle varies depending on the number of articles published by each country. The VOSviewer software grouped them into seven components. to the top ten countries with the highest scientific production. The nine countries that made up this cluster group had 608 articles, that is, 27.9% of the total sample. Cluster 2, in green, was made up of eight countries led by Germany (87). The other countries with which it relates were: Canada (81), Sweden (31), Brazil (30), Norway (29), the Russian Federation (28), Denmark (22), and Finland (11). Together, these countries grouped 319 publications, that is, 14.6% of the total. Cluster 3, in blue, was led by Australia (91) and included countries such as Indonesia (27), Malaysia (27), Bangladesh (25), Philippines (25), and Thailand (16). Thus, cluster 3 managed to group nine (6%), of the total articles in the sample, that is, 211 articles. The following four clusters grouped 47% of the sample, so were less relevant.

Keyword Analysis
The sample of 2182 articles contained a total of 6866 keywords. Table 9 shows the 25 most used keywords in this research. These terms express the object of study of the articles, so their analysis allowed us to obtain information on the interests that have been generated throughout this research line.
We found it predictable that among the most prominent keywords in the sample was poverty (860 documents, 39.4%), since it was one of the main search terms. However, it is striking that among the five most prominent keywords, we also found rural-economy (354 documents, 16.2%). This keyword appeared for the first time in the four-year period of 1992-1995, when it occupied position 183, with only two articles that related it to poverty and family economy. However, from 2000 on, it was placed in the second position, which justifies the scientific interest in focusing on the analysis of poverty in rural areas. In this sense, in the tenth position of the ranking in Table 8, the terms ruralarea (116 documents, 5.3%) and rural-development (71 documents, 3%) also appeared strongly (3%), and climbed to the sixth and twenty-fourth positions in the last four years of 2016-2019. The rise in the ranking of keywords related to rural areas is in contrast with the loss of relevance of the term Cluster 1, in red, was the most numerous and included nine countries and was headed by the United Kingdom. South Africa and the Netherlands also belonged to this cluster, which also belonged to the top ten countries with the highest scientific production. The nine countries that made up this cluster group had 608 articles, that is, 27.9% of the total sample. Cluster 2, in green, was made up of eight countries led by Germany (87). The other countries with which it relates were: Canada (81), Sweden (31), Brazil (30), Norway (29), the Russian Federation (28), Denmark (22), and Finland (11). Together, these countries grouped 319 publications, that is, 14.6% of the total. Cluster 3, in blue, was led by Australia (91) and included countries such as Indonesia (27), Malaysia (27), Bangladesh (25), Philippines (25), and Thailand (16). Thus, cluster 3 managed to group nine (6%), of the total articles in the sample, that is, 211 articles. The following four clusters grouped 47% of the sample, so were less relevant.

Keyword Analysis
The sample of 2182 articles contained a total of 6866 keywords. Table 9 shows the 25 most used keywords in this research. These terms express the object of study of the articles, so their analysis allowed us to obtain information on the interests that have been generated throughout this research line. We found it predictable that among the most prominent keywords in the sample was poverty (860 documents, 39.4%), since it was one of the main search terms. However, it is striking that among the five most prominent keywords, we also found rural-economy (354 documents, 16.2%). This keyword appeared for the first time in the four-year period of 1992-1995, when it occupied position 183, with only two articles that related it to poverty and family economy. However, from 2000 on, it was placed in the second position, which justifies the scientific interest in focusing on the analysis of poverty in rural areas. In this sense, in the tenth position of the ranking in Table 8, the terms rural-area (116 documents, 5.3%) and rural-development (71 documents, 3%) also appeared strongly (3%), and climbed to the sixth and twenty-fourth positions in the last four years of 2016-2019. The rise in the ranking of keywords related to rural areas is in contrast with the loss of relevance of the term agriculture (78 documents, 3.6%), which in the four-year period 1976-1979 occupied the fourth position and in the last four-year period, it moved to 20th place.
From a gender perspective, it is interesting the relevance that the concept of women acquires in scientific documents that deal with poverty in the context of household. Thus, the term woman/women (142 documents, 6.5%) was in seventh position. In the time horizon considered, this term has not ceased to acquire relevance, which justifies a vision from the gender perspective of family poverty.
The relationship among the different keywords in the sample can be seen in Figure 5, which allowed us to glimpse the main research trends of the sample considered. This grouping was based on the co-occurrence method used by the VOSviewer application when analyzing the simultaneity of keywords in the articles in the sample. Thus, the color of the nodes was used to distinguish the different clusters according to the number of co-occurrences, while their size varied according to the number of repetitions. In this sense, the VOSviewer software tool has made it possible to detect three main lines of research developed by the different scientific communities. According to the term associated with a greater number of articles within each component, the cluster and research lined a linked batch around "Poverty", "Economics and Developing countries", and "Woman and family".  We present Figure 6 in order to analyze the gender perspective in more detail in the scientific literature on poverty. It is an expansion of the blue cluster, dedicated to women and family, in which the co-occurrence of the term woman was observed. Women with other keywords from this same cluster as well as the relationship with other clusters. In this regard, although it was known that woman/women were the dominant keywords in this cluster, it was also the one with the highest number of relationships with other keywords. These co-occurrence relationships are very strong in the case of poverty, rural-area, and income (red cluster) as well as with economics, developingcountries, and employment (green cluster).  The first grouping of keywords was made around the red cluster, with 201 relevant terms that were dedicated to the study of poverty and its impact in various areas. This cluster grouped the largest number of keywords and articles. Among the most important keywords in this cluster were: poverty (860 documents), rural-economy (354), household-income (217), rural-area (116), and income-distribution (112). This topic remains dominant in 53.03% of the articles in the sample and it is logical since it includes all the search terms that gave rise to the sample of 2182 articles ( Table 2).
The second cluster (green) batched 90 keywords that made up a research line around the socioeconomic aspects of poverty and its impact on development. In this sense, the most used terms in this cluster were: economics (177 documents), developing-country (113), socioeconomic-factors (106), socioeconomics (103), and demography (78). The theme of the cluster was present in 23.74% of the articles in the sample.
Finally, the third cluster (blue) with 88 keywords (23.2% of the sample) was dedicated to the study of women and the family. The most recurrent term in the articles corresponding to this cluster was woman/women (142 documents), male (96), adult (86), household (58), and child (53). It should be noted that this third cluster was not the object of the search (Table 2) and revealed an important fact: the role of women in the family environment in the scientific literature that studies poverty at home.
We present Figure 6 in order to analyze the gender perspective in more detail in the scientific literature on poverty. It is an expansion of the blue cluster, dedicated to women and family, in which the co-occurrence of the term woman was observed. Women with other keywords from this same cluster as well as the relationship with other clusters. In this regard, although it was known that woman/women were the dominant keywords in this cluster, it was also the one with the highest number of relationships with other keywords. These co-occurrence relationships are very strong in the case of poverty, rural-area, and income (red cluster) as well as with economics, developing-countries, and employment (green cluster).
Therefore, it is necessary to recognize the relevance of women in the analysis of the scientific literature on poverty in the family sphere and, more specifically, in its effects on employment, the development of countries, and the socioeconomic aspects of poverty. These results are consistent with those references in our bibliographic review. Specifically, it is interesting to point out those investigations from a feminist perspective that refer to the role of women in rural contexts-peasant economies-as an element of not only biological reproduction. We refer to that complementary relationship between informal economies-unpaid, supply, maintenance, food-where the role of women would appear, and the context of the "formal" wage labor. We present Figure 6 in order to analyze the gender perspective in more detail in the scientific literature on poverty. It is an expansion of the blue cluster, dedicated to women and family, in which the co-occurrence of the term woman was observed. Women with other keywords from this same cluster as well as the relationship with other clusters. In this regard, although it was known that woman/women were the dominant keywords in this cluster, it was also the one with the highest number of relationships with other keywords. These co-occurrence relationships are very strong in the case of poverty, rural-area, and income (red cluster) as well as with economics, developingcountries, and employment (green cluster).  Finally, the analysis of keywords has not shown a trend in research dedicated solely to the family context, but is rather part of a higher theme, described in the blue cluster. In this sense, it is of interest to investigate these contexts, and expand current lines of research that review the role of women in rural and poverty settings. From this line of research, it would be interesting to look at the economic and reproductive strategies that could be activated, so that the role of women in these areas is understood more broadly.

Conclusions
The objective of this study was to analyze the scientific production of the relationship between family economy and poverty through a bibliometric analysis of 2182 articles obtained from the Scopus database. The findings made it possible to identify the main drivers, potential tendencies, and certain gaps in critical knowledge.
The number of articles related to this topic published annually during the period 1968-2019 has been increasing. Since 1980, the rate of publication has increased. While in the first period (1968)(1969)(1970)(1971), only two articles were published on this topic; in the last four-year period analyzed (2016-2019) the number rose to 539, that is, practically 270 times more. The increase in the number of publications is especially accentuated in the last four years, where 24.7% of the total articles published in the analyzed period were published, with 539 articles. In this same sense, during the last eight years (2012-2019), 45% of the articles (978) were published The Social Science category is the outstanding one during the entire period studied, with 39% of the articles published (1400) in this category. This was followed, in order of importance, by the categories Economics, Econometrics and Finance (19%, 686), Environmental Science (8.5%, 304), Medicine (6%, 214), Agricultural and Biological Sciences (5.8%, 210), Business, Management and Accounting (5.1%, 185), and Arts and Humanities (5.1%, 182). Thus, the seven most prominent categories represented 88.5% of the documents published from 1968 to 2019. Furthermore, the rest of the subject areas did not exceed 2.5% of the total articles published.
In the ranking of the 20 journals with the most published articles, the high percentage of journals (75%) that belonged to the first quartile (Q1) of the 2019 SJR index stands out. Furthermore, the greatest impact factor, SJR, is presented by the Journal of Development Economics with 3585 (Q1), followed by Economic Development and Cultural Change with 3483 (Q1).
World Development was the journal that had published the most articles in the time horizon considered (75, 3.4%), followed by the Journal of African Economies (44, 2.0%). The top 20 journals on this research topic published 18.50% (403) of the total articles.
The most productive author on the research topic was Martin Ravallion from the University of Malaysia with nine published articles, followed by the American Sadoulet (9) and the Dutch Lanjouw (8) from the University of California and the Vrije Universiteit Amsterdam, respectively. In any case, Martin Ravallion, despite the fact that he was not the first to start writing about this subject as his first article was from 1995, was the author with the highest number of articles, with the highest number of citations (311), and consequently, with a higher average number of citations per article (34.56). In addition, Ravallion also stood out with the highest h-index (9), followed by Sadoulet and Lanjouw, with a record of eight each.
The World Bank was the most prolific institution, with 83 articles as well as the one with the highest number of citations: 3580 and also had the highest h-index: 31. However, the highest average number of citations was obtained by works attached to the University of California with 59.7 citations per article. This was followed by the World Bank, with 43.1 citations per article. On the other hand, Wageningen University & Research was the institution with the highest percentage of international collaboration (77.78%).
For its part, the United States was the country with the most publications (593) and with the highest h-index (65). In addition, it was the country with the highest number of citations (12,659). The second country with the highest number of articles was the United Kingdom (304), although it held the first position in terms of the average number of citations (25.70 citations per article). The United States also led the ranking of the most productive countries since 1980. Only in the quadrennium of 1976-1979 did the United Kingdom surpass the United States in the number of articles related to poverty and the family economy. In the last four years (2016-2019), China has come to occupy the fourth position, after India, with 34 articles, which represents 40% of its total production (85 articles). In the future, this inertia is sure to consolidate China and India at the top of this table. In contrast, the Netherlands, which was in fourth position in the four-year period of 2004-2007, was in 26th position in the last period.
In short, the United States, United Kingdom, India, China, and South Africa are the main driving countries for research topics related to poverty and the family economy. Specifically, these five countries grouped 51.6% of the total articles in the sample.
We found it predictable that among the most prominent keywords in the sample was poverty (860 documents, 39.4%), since it has been one of the main search terms. However, it is striking that among the five most prominent keywords, we also found rural-economy (354 documents, 16.2%). The rise in the ranking of keywords related to rural areas is in contrast to the loss of relevance of the term agriculture (78 documents, 3.6%), which in the four-year period of 1976-1979 occupied the fourth position and in the last four-year period, it moved to 20th place.
From a gender perspective, it is interesting the relevance that the concept of women acquires in scientific documents that deal with poverty in the context of household. Thus, the term woman/women (142 documents, 6.5%) was in seventh position. In the time horizon considered, this term has not ceased to acquire relevance, which justifies a vision from the gender perspective of family poverty.
From the analysis of our bibliometric review, we understand that future research lines should focus on (i) family economies in contemporary societies; (ii) the specific role of women in the family economy; (iii) comparative studies on the role of women in contexts of poverty and in developed countries; (iv) the participation of women in informal economies in contexts of poverty; and (v) female participation in contexts that break with the intergenerational transmission of poverty.
Among the lines of research to be developed, it would mainly be interesting to study (i) the participation of women in informal economies in contexts of poverty; (ii) female participation in contexts that break with the intergenerational transmission of poverty; and (iii) gender roles, intergenerational patterns and informal economy in the context of poverty.