Analysis and ideology in Malthus's Essay on Population.

Examination of the second and subsequent editions of T. Robert Malthus's Essay on the Principle of Population shows that the author created a more expansive examination of his political economy of population than that of the simple model in the Essay's first edition. In subsequent editions, the simple, ecological model gives way to a sophisticated general model of a commercial society with property rights, the rule of law, marriage laws similar to those of the British Christian tradition, and expanded markets. The result was not the “dismal” prognostication that Malthus is often identified with. Rather, he was reasonably optimistic that steady growth in per capita income could be accomplished along with a rising population. Biology could never be conquered, but within the right institutional context, reason might interrupt its career.

Essays in Ecological Economics

The year 1798 has traditionally enjoyed a certain prominence in the canons of both English literature and economic thought. In each case, however, the justification for such distinction can no longer be considered entirely self-evident. For historians of political economy, 1798 is notable, above all, as the year in which Thomas Robert Malthus's Essay on the Principle of Population first appeared. There is no doubt of the tremendous influence of this work, nor of the enduring notoriety it quickly achieved. According to Malthus's ‘population principle’, population growth will always tend to outstrip the means of subsistence. More recently, the idea that Malthus's Essay marked a significant step towards a positivist, secular science of economics has become rather more contentious.

Economic development and growth of population in Asia have caused an increase in the demand for food. On the other hand, disappearing the cultivation area and global warming have caused a decrease in the supply for food. In 1995, China imported cereals from U. S. A for the first time.To understand the future of Asia, it is required to make a model which concerns about reciprocal action among demand for food, supply for food, environment, economic development. This study proposes a model based on ecology and economics.For example, this study includes a model based on income producing processes. Income is obtained from a calculation involving capital and labor using the Cobb-Douglas function. These data for income is then used to calculate the demand for food.

Giovanni Botero (1544-1617) is a majorfigure in the early history of modern political science. His principal work, Della ragion di stato (The Reason of State, 1589), is in many ways of comparable interest to Machiavelli's much more famous The Prince (1513). It is a slightly earlier and shorter work of Botero's, Delle cause della grandezza delle citta (The Cause of the Greatness of Cities, 1588), however, that should earn him recognition as the originator of modern population theory. The concluding section (Book III) of that treatise introduces a scheme for analyzing the forces governing population growth that, more than two hundred years later, became known and enormously influential as the centerpiece of Malthus's Essay. As Schumpeter comments in his History of Economic Analysis: Divested of non-essentials, the 'Malthusian' Principle of Population sprang fully developed from the brain of Botero in 158[81: populations tend to increase, beyond any assignable limit, to the full extent made possible by human fecundity (the virtus generativa of the Latin translation); the means of subsistence, on the contrary, and the possibilities of increasing them (the virtus nutritiva) are definitely limited and therefore impose a limit on that increase. And further: [Botero's] path-breaking performance-the only performance in the whole history of the theory of population to deserve any credit at all-came much before the time in which its message could have spread; it was practically lost in the populationist wave of the seventeenth century. But about two hundred years after Botero, Malthus really did no more than repeat it, except that he adopted particular mathematical laws for the operation of the virtus generativa and the virtus nutritiva (pp. 254-255). Despite the distance in time and in some respects in philosophy, the similarity between the thinking of the English clergyman Malthus and his Italian predecessor (who was a Catholic priest trained as a Jesuit) goes beyond the basic framework of their analytic approach. For example, Botero's views on the types and modus operandi of what came to be known as positive checks and ''preventive checks to population growth are a remarkable anticipation of Malthus's treatment. Like Malthus (who did not know the work of his Italian predecessor), Botero sought to ground his reasoning in observable demographic facts, even though that effort was largely frustrated by his lack of access to reliable statistics and by his misconceptions about the demography of both the ancient and the contemporary world. Reproduced below is the full text of Book III of The Cause of the Greatness of Cities as translated into English by Sir T. Hawkins. The text of this translation (published in London in 1635) was obtained from the New York Public Library. It is rendered here in modern spelling and with modern punctuation.

In this paper, Leontief linear production functions with one product, and one activity are used to derive the production function of Abyek Cement Factory. The mathematical closed form of production function and also, profit, cost, and demand functions for production factors are obtained for the cited factory.
 We tried to calculate Operational Production Function of Abyek Cement Factory. It was realized that Leontief linear production function is applicable, and its mathematical form can properly express the economic structure of production in a cement factory.
 The efficient production function for this factory is also derived in this research. This function exhibits the costs incurred due to the inefficient production of the factory during different years. According to the findings, it was concluded that if the Abyek Cement Factory produces efficiently through employing optimal amounts of factors of production, it can reduce costs by 21 to 52 percent without any change in production level. Calculations were done for both short-term and long-term periods.
 JEL: D22, L11, L61

This commentary reviews total aquatic food supply from aquaculture and capture fisheries from 2010 to 2020 at global, regional, and national levels within main producing countries; aquatic animal foods include fish, crustaceans, molluscs, and other invertebrate animals destined for direct human consumption or as fish and seafood by the FAO. Whilst total combined aquatic animal food supply from aquaculture and capture fisheries has increased on a global basis from 18.59 to 20.49 kg/capita over the past decade, the global supply has not kept up with population growth over the same period. Of particular concern was the decrease in fish and seafood food supply within the African region, decreasing from 10.40 to 9.58 kg/capita, whilst population growth increased by 3.12%/year over the same period. Moreover, the Asian region was the only region where per capita fish and seafood food supply exceeded population growth; the bulk of fish and seafood supply being sourced from increased aquaculture production of primarily freshwater fish species, compared with other regions where marine wild fisheries still dominated fish and seafood supply. Fish and seafood supply in leading aquaculture and capture fisheries producing countries between 2010 and 2020, including China, Indonesia, India, Viet Nam, Bangladesh, South Korea, Japan, and USA are presented and demonstrate growth in per capita fish and seafood supply being lower than human population growth in Ecuador, Philippines, Turkey, Chile, Norway, Brazil, Myanmar, the South Korea, and Japan. If aquatic food supplies from aquaculture and inland/marine capture fisheries are to make an increasing global contribution to healthy diets, then the increased production and market availability of these products needs to be promoted by governments and actively encouraged and stimulated, particularly within the African continent.

the year 1797 Napoleon Buonaparte was successfully engaged in the conquest of Austria, Prussia and Italy. The mad Emperor Paul had just succeeded his equally mad mother Catherine the Great on the Throne of Russia. In England the mad King George III, having succeeded in losing the thirteen Colonies, was enjoying the thirty-seventh year of his reign. It was in this year that an otherwise inoffensive English country clergyman decided to write a book. This was probably the most important event of the year. The clergyman was Robert Malthus; the book, which was published anonymously in 1798, was entitled An on the Principle of Population as it affects the future improvement of Society; with remarks on the speculations of Mr. Godwin, M. Condorcet and other writers. In his Essay Malthus attacked the prevalent belief in a future age in which humanity would attain the ideal of universal equality, happiness and peace. He asserted that it was a rule of nature that the human population should inevitably increase more rapidly than the means of subsistence, and that, in consequence, perfectibility in the material sense was an idle dream. Unless the growth of population could by some means be checked the future of humanity would be dark indeed. Misery and vice were the only natural checks. In later editions he added that moral restraint might also be developed as an effective means of limitationalthough he never accepted the principle of birth control, which he condemned because of its immorality and because of its tendency to remove a necessary stimulus to industry. He emphasized this argument by the assertion that if it were possible for each married couple to limit by a wish the number of their children, there is certainly reason to fear that the

The population growth and demand for high living standard not only increase food demand but also cause more loss of the limited cultivated land resources. Cultivated land loss caused by disasters and the implementation of the "Conversion of Cropland to Forest or Grassland" project make this situation even worse in China. Thus, there is a problem to be solved imminently that to what extent the cultivated land can guarantee food security of China. Based on time-series data on food production and cultivated land area from 1989 to 2003 and other research results, this paper constructs quality index of cultivated land according to different land quality. Regression models are adopted to predicate changes of main factors from 2004 to 2030, which have great effect on cultivated land area or grain productivity, and verify accuracy with coefficient of determination (R(2)). Nine results were got according to three scenarios of decreasing rate of population growth rate and three cases of urban and rural built-up area per capita. There results show that China's food supply can only be maintained at a low to middle level of 370-410kg per capita, that is, China has enough land productivity to meet primary demand of food independently. However, it cannot reach the safe target of 500kg per capita if there is no breakthrough in breeding or no remarkable improvement of irrigation works, when the grain self-sufficiency maintains no less than 80%. To breed productive crops and to improve land productivity by meliorating low quality cultivated land are appropriate measures to shrink the gap between food demand and supply. The results may offer helpful information for the formulation of policies on population growth, land use, protection of cultivated land.

Reviewed by: The Science of Starving in Victorian Literature, Medicine, and Political Economy by Andrew Mangham Tabitha Sparks (bio) Andrew Mangham. The Science of Starving in Victorian Literature, Medicine, and Political Economy. Oxford UP, 2021. Pp. xii +191. £58.00. ISBN 978-0-19-885003-8 (ebook). Among the many explanations for England's failure to provide adequate aid during Ireland's infamous potato famine, perhaps none is more chilling than Head of the (British) Registry Charles Trevelyan's description of the famine as a "salutary revolution" befitting a "nation long singularly unfortunate" (Mangham 23). Trevelyan, steeped in Malthusian theory, reflects an extreme version of political economists' view of starvation as a providential corrective to unruly populations. So we learn in Andrew Mangham's concise and engaging monograph, The Science of Starving in Victorian Literature, Medicine, and Political Economy, which disentangles the first two subjects of the title from the last. In jargon-free prose and with assiduous research, Mangham demonstrates how political economists deflected the reality of suffering bodies into abstractions like population growth and reproductive trends, while medical doctors and novelists foregrounded the material experience of starvation and its physical effects. Like novelists Charles Kingsley, Elizabeth Gaskell, and Charles Dickens, each of whom commands a chapter in Mangham's book, physiologists attended to the actual horror of starving–not the impersonal contemplation of starvation. In his first chapter, Mangham unravels the various scientific, epistemological, and spiritual approaches to starvation from the late 18th through the 19th century. If starvation as a consequence of poverty may be too easily or automatically associated with a broad-strokes economic empiricism, starting with Adam Smith and moving through Malthus and Chadwick, Mangham reminds us that Malthus's Essay on the Principle of Population (1798) "has very little to say about actual matter such as blood, bones, tissues, and waste" (32). In contrast, medical professionals including William Alison, James Kay, and Thomas Southwood Smith countered such conjectural thinking through painstaking studies of hunger's actual effects, establishing it as a pathological condition rather than one of nature's periodic checking mechanisms. Likewise, the following chapters align the social problem novels of Kingsley, Gaskell, and Dickens with the rise of political interventions against [End Page 471] hunger that hinge upon an increasingly physiological understanding of the starving body. Kingsley's tentative adoption of scientific principles in his novels, poetry, and sermons show the Unitarian minister struggling to reconcile materialism with spiritual and evangelical notions about natural determinism. Alton Locke, Mangham writes, "is most forceful when it focuses on bodies" (70). In his chapter on Gaskell, Mangham depicts how Mary Barton (1848), North and South (1854), and Sylvia's Lovers (1863) vividly wrest starvation from social dilemma to personal experience, facilitated by Gaskell's determination "to really SEE the scenes I tried to describe" (123). One of The Science of Starving's most interesting contributions to the Victorian novel is Mangham's argument that Gaskell's acutely realistic "seeing" and her sentimental plots are co-productive rather than contradictory. How could, for instance, the depiction of a hungry child without emotional investment and pathos be authentic? Mangham's chapter on Dickens cogently compares the novelist's representations of poverty and starvation in novels like Oliver Twist and Bleak House with historical examples, such as an 1848–49 cholera epidemic at the Juvenile Pauper Asylum in Tooting, which killed 126 boys. Criminal responsibility for such acts, Mangham explains, was mitigated by diagnostic ambiguity: the boys died of cholera, but were significantly weakened by their state-supported, subsistence-level diet. So persuasive is Mangham's thesis that at times it appears less argumentative than plucked from the novels themselves. Quotations from Mary Barton and Hard Times, for instance, explicitly castigate abstract and unfeeling political economy and invoke the suffering individual. In Mary Barton, Jeb Legh tells Mr. Carson, "I'm not given to Political Economy, I know that much. I'm wanting in learning, I'm aware; but I can use my eyes. I never see the masters getting thin and haggard for want of food," and in Hard Times we read that "For the first time in her life Louisa had come into one of the...

Purpose-The purpose of this study is to examine the problem of scarcity related to the theory proposed by Robert Malthus and its relevance today. As well as how Islam views the nature of scarcity. 
 Methods- This research is classified as library research, where the collection of library materials that are relevant to the research topic is the main strength of this research. In addition, this research can be categorized in the study of character studies, namely a systematic and critical study of Robert Malthus's economic thinking related to the theory of scarcity. 
 Findings- In Islamic economics, if we return to the problem of food scarcity that Malthus argues is caused by the explosion of the population that is not illuminated with the amount of food in the world, then in essence, Allah SWT has bestowed nature and its contents to meet human needs. Every human being already has a part of their respective benefits, so there can be no shortage in terms of food-related to the increase in population that occurs. 
 Implications- Ideally, Malthus's theory reminds us that population growth must still pay attention to environmental sustainability, meaning that it must be adjusted to the carrying capacity and environmental capacity.

This article is dedicated to the late Giorgio Israel. R{\'e}sum{\'e}. The aim of this article is to propose on the one hand a brief history of modeling starting from the works of Fibonacci, Robert Malthus, Pierre Francis Verhulst and then Vito Volterra and, on the other hand, to present the main hypotheses of the very famous but very little known predator-prey model elaborated in the 1920s by Volterra in order to solve a problem posed by his son-in-law, Umberto D'Ancona. It is thus shown that, contrary to a widely-held notion, Volterra's model is realistic and his seminal work laid the groundwork for modern population dynamics and mathematical ecology, including seasonality, migration, pollution and more. 1. A short history of modeling 1.1. The Malthusian model. If the rst scientic view of population growth seems to be that of Leonardo Fibonacci [2], also called Leonardo of Pisa, whose famous sequence of numbers was presented in his Liber abaci (1202) as a solution to a population growth problem, the modern foundations of population dynamics clearly date from Thomas Robert Malthus [20]. Considering an ideal population consisting of a single homogeneous animal species, that is, neglecting the variations in age, size and any periodicity for birth or mortality, and which lives alone in an invariable environment or coexists with other species without any direct or indirect inuence, he founded in 1798, with his celebrated claim Population, when unchecked, increases in a geometrical ratio, the paradigm of exponential growth. This consists in assuming that the increase of the number N (t) of individuals of this population, during a short interval of time, is proportional to N (t). This translates to the following dierential equation : (1) dN (t) dt = $\epsilon$N (t) where $\epsilon$ is a constant factor of proportionality that represents the growth coe-cient or growth rate. By integrating (1) we obtain the law of exponential growth or law of Malthusian growth (see Fig. 1). This law, which does not take into account the limits imposed by the environment on growth and which is in disagreement with the actual facts, had a profound inuence on Charles Darwin's work on natural selection. Indeed, Darwin [1] founded the idea of survival of the ttest on the 1. According to Frontier and Pichod-Viale [3] the correct terminology should be population kinetics, since the interaction between species cannot be represented by forces. 2. A population is dened as the set of individuals of the same species living on the same territory and able to reproduce among themselves.

HISTORICALLY, EACH MAJOR INHABITED region of the earth has produced its own food supply, and generally, agricultural production has kept pace with population growth. As populations have grown, however, crop failure from drought, flood, or whatever cause, in a given region necessarily affects increasing numbers of people. Estimates are that somewhat less than 2 million humans starved to death in the 17th century, 10 million in the 18th century, 25 million in the 19th century, and perhaps 12 million thus far in the 20th century. Were it not for improved communications, early warnings, the remarkable productivity of North American agriculture, and a worldwide food distribution capability, agriculture in the 20th century might well fail to keep pace with the world population growth of 2 percent per year, and major regional crop failures could now claim more lives than at any time in the past. We have entered a period of great international anxiety about the world's ability to feed its growing population. In 1972, the world food situation was transformed from one of food surpluses and low prices to one of relative food scarcity and high prices. This rapid reversal has raised again a wave of widespread food, population pessimism similar to that which has swept over the world several times since Thomas Malthus wrote his influential essay in 1789. A wide spectrum of opinion exists about the causes of this rapid change in the world food situation and its likely development in the future. One view is that we have reached the limit of the world's ability to feed even our present numbers adequately. Another view is that the events of the early 1970s signal a fundamental shift in the structure of the world's food economy that has led to a period of more or less chronic scarcity and high food prices. The soaring demand for food, spurred on by both continuing population growth and rising affluence, has begun to outrun the productive capacity of the world's farmers and fishermen. If this is the case, the limits to expansion of our food supply will require efforts to reduce consumption by the world's rich to feed the world's poor. A third opinion is that although the situation will be precarious for the next year or two, the factors that combined to cause it can be overcome. In this view, to which I subscribe, food production during the next decade will keep a half a step ahead of population growth, but there will be times and places of critical shortage. This last view is corroborated by a recent United Nations study, a study by the economic research service of the United States Department of Agriculture and a committee of the National Academy of Sciences and National Science Foundation, which I chaired. This committee considered the primary issue in balancing the food-population equation is an early reduction in the population growth rate and the attainment of population equilibrium as soon as possible. The factors that influence the population-food balance may be grouped into those relating to population, to agricultural resources, and to the more general features of the world food system. The main purpose of this article is to describe briefly some of these factors and what I believe can be done about correcting a potentially explosive situation.

The analysis described here was carried out in response to a political crisis in Australia. In 1994, a Member of Parliament who opposed the use of foreign aid funds for family planning programs blocked the passage of the national budget. The impasse was resolved through a compromise. The use of foreign assistance for population activities was frozen pending an independent inquiry into the impact of population on economic development. A team of nine researchers prepared background papers on population and economic development, health, education, food supply, housing, poverty, the environment, family planning, and human rights. The overall conclusion of the inquiry was that slower population growth will yield more rapid development in most countries, especially in relatively poor, agricultural nations. The purpose of this contribution to the inquiry was to assess how population growth was affecting the housing sector and, in turn, economic development. Among other questions, does population growth increase the demand for residential land, housing, and urban infrastructure? Demographic methods were critical to answering the questions, especially assessing the impact of population growth on the demand for housing.

Deriving data mining and regression based water-salinity production functions for spring wheat (Triticum aestivum)