Changes in the Value of Money over time |
Historical Background |
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| A frequent question is "how much would a specified amount of money at a certain period of time be worth today?" The sources listed below are useful in attempting to answer this question.
Comparisons of purchasing power are only reliable over short periods. A typical computer today is a very different machine from its counterpart of 5 years ago. Indices of inflation fail to take proper account of improvements in quality. Even in the essentials of life there are significant changes over the years. A typical diet in most advanced countries will be rather different today from what it would have been before the refrigerator became a common household item. Furthermore it has been argued that anthropometric measures of well-being, e.g. people's height, are a far better measure of a nation's standard of living than such conventional indicators as gross national product or per capita income. Therefore over long time spans, changes in prices give only the very roughest and most approximate idea of changes in the value of money. |
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For a narrative account of monetary history since the dawn of civilisation onwards see A History of Money from Ancient Times to the Present Day, the book by Glyn Davies and the website that is based on it. | ||
| The website includes an extensive annotated chronology as well as some essays based on themes from the book.
The focus of the book is on the events themselves with just a few examples of changes in the value of money such as those in the notes below. |
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| This page is not about the value of old coins and banknotes. See the web page on numismatics for pointers on that subject. | ||||
If the comparison you are making involves different currencies then the calculators or tables listed below may be useful.
40 cowries = one string = 3/4d.
5 strings = one bunch = 3-6d.
10 bunches = one head = 13/4 shillings.
10 heads = one bag = 14-18s.
Later, because of inflation, these values changed drastically.
"Two obols were the day's pay of a labourer, while the architect of the Erechtheum temple on the Acropolis earned about three times as much, a drachma a day. As a rough but useful guide as to the value of such coins, the average day's pay for a manual worker in Great Britain in 1982 was over £27, while a first-rate consultant architect (not necessarily of the quality of those that built the Parthenon) would expect to earn at least £200 a day, worth in today's inflated currency some 25,000 drachmae."
"the booty brought back by Drake in the Golden Hind may fairly be considered the fountain and origin of British Foreign Investment. ... In view of this, the following calculation may amuse the curious. At the present time (in round figures) our foreign investments probably yield us about 6½ per cent net after allowing for losses, of which we reinvest abroad about half - say 3¼ per cent. If this is, on average, a fair sample of what has been going on since 1580, the £ 42,000 invested by Elizabeth out of Drake's booty in 1580 would have accumulated by 1930 to approximately the actual aggregate of our present foreign investments, namely £ 4,200,000,000 - or say 100,000 times greater than the original investment. ..."
"Returning to the last quarter of the sixteenth century in England, the reader must remember that it was not the absolute value of the bullion brought into the country - perhaps not more than £ 2,000,000 or £ 3,000,000 from first to last - which mattered, but the increment of the country's wealth in buildings and improvements being probably several times the above figures. Nor must we overlook the other side of the picture, namely the hardship to the agricultural population, which became a serious problem in the later years of Elizabeth, due to prices outstripping wages; for it was out of this reduced standard of life, as well as out of increased economic activity (tempered by periodic years of crisis and unemployment), that the accumulation of capital was partly derived."
The people whose names are listed below suggested sources or made useful comments on the problem of comparing sums of money over long time periods. I apologise if I have omitted anyone.
Jonathan Bean, Mason Clark, Glyn Davies, Ron Haller-Williams, Anthony Hoelscher, William F. Hummel, David Lloyd Jones, John Lehman, Helen Liebel-Weckowicz, Darren Lubotsky, Paul Marks, Wade Neitzel, Geno Pinero, John A. Lane, Jane Howells, Cal Schindel, Bill Goffe and Stuart Taylor.
Valè aktyèl nan Lajan Old, Haitian Creole translation of this web page (by Web Geek Science)
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