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Hello Mr. Malthus,
I have always believed that the building of a strong economy is dependent upon the quantity of labor and money invested in the production of manufactured goods. I found your population theory to be a new concept for me. At my time, there was no concern of such problem. I understand that you wish to invest labor and funds into areas such as agriculture. However, how will an economy be able to develop if its only purpose is targeted towards agriculture but not through advanced innovations and trades?

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Thank you for your suggestion Marx! I've heard that your ideologies go against mine and that you mostly disagree on my population theory. However, as I emphasized before, population is one of the most important factor we have consider when talking about economic growth. We can't just dismiss this whole issue and concentrate on other factors that affect our society.

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Thank you for your excellent question Pigou! I have been thinking about the solutions we could implement to solve the issue of population growth and lack of resources. It pains me to say this but resources in the Earth are limited so there's nothing we can do with the limited resources. However, how we use the resources and maintain them are major significance we have to consider. One of the solution we can employ is through legislations. For instance, China used the one child policy to prevent its country from exceeding the maximum population.

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Thank you for your comment, Schumpeter! Yes, I, too, believe that my theory is outdated and needs some refining done. Your ideas that rest upon the idea of innovation will reduce the possibility of Malthusian catastrophe or even prevent it. Let's both hope for constant brilliant innovation that will pave the way for a sustainable future!

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Thank you for your comment. However, I just would like to remind you that I was born 100 years earlier than you, so it was you who I influenced! haha. In regards to government intervention in the market, though I sway more to the Laisse Faire idea, but I do think that there should be government intervention in order to promote self-restraint.

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Good work Thomas!
I see that you picked up on my ideas, and built off them. I'm not sure how your theories held out (since I left this Earth first), but it is interesting to read about some potential areas of economics and growth that I have not thought about.

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Hello Mr. Malthus,

I strongly disagree with your population theory – it only takes into account specific aspects of production rather than concerning society as a whole. The "population growth" you are so concerned about only arises as a consequence of the capitalist system – the main cause that would lead to low food production, which would be the main concern behind population growth. Should the government take control of markets as I have suggested all along, then they can control the food production and adjust it according to the population growth, preventing such an event as you have described from ever happening.

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Hey Mr. Malthus,

I like how you raised awareness of issues that were taken for granted in your days, though your work in population theory could have been more refined, it was good nonetheless.

I am of the opinion that the actual pattern of birth rates with industrialization and urbanization accompanied by growth in food production suggested quite the opposite of your theory.

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Hello Malthus,
I found your discussion of the population theory quite interesting - i do agree with this problem because I believe people see current pleasures more than future pleasures, even though they are the same, and so direct efforts to near desires than future ones. This of course leads to a lack in resource for the future, whether on an individual scale or a societal. Do you think there is any solution for this nature of man?

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To add proof and help support his cause, Malthus helped formulate a model that is still widely used today to predict population growth of the future, extremely useful for short term predictions under 20 years. This contribution was useful for economists everywhere as it helped them to understand the rate of food production to rate of population growth to see how such a problem could come to existence.

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Population theory: "An essay on the principles of population" is one of the greatest contributions to the intellectual growth of mankind. This essay greatly helped further the principles of economics as well as it was one of the founding ideas of the economic problem. In his essay, Malthus raised awareness of issues that were taken for granted in his day: how to feed increasing wants with decreasing resources. People thought that as technology was developed, prosperity would come and the world would become a utopia. However, Malthus thought that with increasing population, the demand on food (Malthus thought that humans have the basic need to reproduce and that food is an essential component for human survival) would be too high and the supply too low and there would be a future crisis (famine, disease and war) in the hands of the generations following his.

Conflicting Ideas to Malthus's population theory
Boserup was a Danish economist during 1900s who  specialized in agricultural development. In her work ‘The Conditions of Agricultural Growth: The economics of agrarian change under population pressure’ (1965), Boserup challenged Malthus’s theory that the size of the human population is limited by the amount of food it can produce. She suggested that food production can, and will, increase to match the needs of the population. (5)

Endogenous theory of money: Contrary to quantity theory (In the quantity theory of money states that the general price level of goods and services is directly proportional to the amount of money supplied) Malthus argued that rising prices are followed by increases in the quantity supplied of money.

Differential theory of rent: Refuting older contentions that rent was a cost of production, Malthus argued that it was a deduction from the surplus.  Rent, he argued, is enabled by three facts:
(1) that agricultural production yields a surplus;
(2) that the wage-fertility dynamics guarantee that the price of a product would remain steadily above its cost of production;
(3) that fertile land is scarce.

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- After graduation, he was active in his pastoral functions from 1792 to 1794, during which he developed concern for the local people and sympathy, which influences his later theory that references to the laboring class.
- Thomas Malthus and David Ricardo accepted Adam Smith's optimistic principles but differed from him in regards to the inauspicious outlook of the future
- The ideas and theories Malthus developed mainly reflected his reaction to his father's views and the doctrines of the French Revolution. His father, who was both a friend of the philosopher/skeptic David Hume and a disciple of Jean-Jacques Rousseau, had had an immense influence on Malthus, as he was the one who taught Malthus until he went to college. (2) ; Malthus was educated according to "Rousseauvian Precepts"
- He had academic debates with his dad regarding the theories of the contemporaries at that time, who were William Godwin and Marquis de Condorcet. These two theorists argued for the "perfectibility of society" - rather optimistic view where rational human beings will live in forever concordance - whereas Malthus took on a pessimistic view, eventually publishing Essay on Population. (3)
- The extensive travels he did to other places, such as Germany, Russia and Scandinavia, all were empirical experiences through which Malthus revised the essay in 1803 (3)
- In 1805, Malthus had become interested in monetary and published a pamphlet that explained endogenous theory of money. Then in 1810, he came across a stockbroker, David Ricardo, on monetary questions. These two men would form long-lasting friendship, having to realize the drastic difference in their views later, however.  (3)

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-Essay on the Principle of Population as it Affects the Future Improvement of Society" first published anonymously in 1798.
-"An Inquiry into the Nature and Progress of Rent" published in 1815
"Principles of Political Economy" published in 1820
His most well known work without a doubt would be, "An Essay on the Principle of Population" that was published in 1798. In this essay he explained about poverty, dearth, and famine. "An Essay on the Principle of Population" stated that Population will increase geometrically and Earth's resources will increase arithmetically since he argued that humans have the basic need to reproduce and in order to do that food is the necessity. (8)

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-Thomas Malthus was born on February 13, 1766 in Surrey, England. - He was educated mostly at home until his admission to Jesus College, Cambridge. Malthus was educated by private tutors and his father, Daniel Malthus. -Daniel Malthus was a wealthy man and he was a friend of the philosopher David Hume as well as Jean- Jacques Rousseau who he was influenced by, thus educated his son in their schools of thoughts. (7) -Thomas Malthus attended Jesus College, Cambridge in 1784 where he studied variety of subjects. In 1821, Malthus joined the Political Economy Club, whose members included David Ricardo and James Mill who influenced Malthus the most. (7) -During Industrial revolution he saw people moving from farms to cities got him to start thinking about the population to food production theory -He died on December 23, 1834 in Hertford, England.

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http://www.newworldencyclopedia.org/entry/Thomas_Robert_Malthus (1)
http://abyss.uoregon.edu/~js/glossary/malthus.html (2)
http://www.d.umn.edu/cla/faculty/jhamlin/4111/Malthus/Thomas%20Robert%20Malthus.htm
http://www.historyhome.co.uk/people/malthus.htm (4)
https://bigpictureeducation.com/malthus-vs-boserup (5)
http://www.policonomics.com/lp-classical-economics-robert-malthus/ (6)
http://www.ucmp.berkeley.edu/history/malthus.html (7)
http://cgge.aag.org/PopulationandNaturalResources1e/CF_PopNatRes_Jan10/CF_PopNatRes_Jan108.html (8)
https://en.wikipedia.org/wiki/Quantity_theory_of_money (9)

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- Founded the modern demography (1)
-  His theory of demand-supply mismatch was a precursor to later theories about the Great Depression and the works of John Maynard Keynes (1)
- Malthus' idea of "Struggle for existence" had great influence on the thinking of Darwin and Wallace (1)
- In "Principles of Political Economy" he develops the idea of aggregate demand, which was against the Say's Law by viewing demand as an aggregate. He states that if wages were to be maintained at a constant level, aggregate demand would drop, thereby creating a surplus of goods; this idea later is adopted by John Maynard Keynes in his General Theory of Employment, interest, and money (6)
- The writings of Malthus influenced subsequent economists, particularly David Ricardo, who incorporated Malthus' theory of wealth distribution in his theory of Iron law of wages (4)
- Malthus was one of the greatest economists of the nineteenth century who greatly influenced that century's legislation of the state's approach to poverty and unemployment, "The Poor Law"
- Malthus' major contribution to economics was his theory of population, which was presented in his book An Essay on the Principle of Population.
-All in all Thomas Malthus played an integral part in classical liberal economic and social doctrines.  (4)