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The apparent causal relationship between the increase in the economic development of a specific sector and a decline in other sectors
In economics, the Dutch disease is the apparent causal relationship between the increase in the economic development of a specific sector (for example natural resources) and a decline in other sectors (like the manufacturing sector or agriculture). The putative mechanism is that as revenues increase in the growing sector (or inflows of foreign aid), the given nation's currency becomes stronger (appreciates) compared to currencies of other nations (manifest in an exchange rate). This results in the nation's other exports becoming more expensive for other countries to buy, and imports becoming cheaper, making those sectors less competitive.
While it most often refers to natural resource discovery, it can also refer to "any development that results in a large inflow of foreign currency, including a sharp surge in natural resource prices, foreign assistance, and foreign direct investment".
In the "resource movement effect", the resource boom increases demand for labor, which causes production to shift toward the booming sector, away from the lagging sector. This shift in labor from the lagging sector to the booming sector is called direct-deindustrialization. However, this effect can be negligible, since the hydrocarbon and mineral sectors tend to employ few people.
The "spending effect" occurs as a result of the extra revenue brought in by the resource boom. It increases demand for labor in the non-tradable sector (services), at the expense of the lagging sector. This shift from the lagging sector to the non-tradable sector is called indirect-deindustrialization. The increased demand for non-traded goods increases their price. However, prices in the traded good sector are set internationally, so they cannot change. This amounts to an increase in the real exchange rate.
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Using data on 118 countries over the period 1970-2007, a study by economists at the University of Cambridge provides evidence that the Dutch disease does not operate in primary commodity-abundant countries.[why?] They also show that it is the volatility in commodity prices, rather than abundance per se, that drives the resource curse paradox since the negative impact of commodity terms of trade volatility on GDP per capita is larger than the growth enhancing effects of commodity booms. A study of the resource-rich Australian and Norwegian economies has shown that a booming resource sector can have positive effects (or 'spillovers') on non-resource sectors, which have not been captured in previous analysis. Construction and services, and to a lesser extent manufacturing benefit from these spillovers.
Simple trade models suggest that a country should specialize in industries in which it has a comparative advantage; so a country rich in some natural resources would be better off specializing in the extraction of those natural resources.
However, other theories suggest that this is detrimental, for example when the natural resources deplete. Also, prices may decrease and competitive manufacturing cannot return as quickly as it left. This may happen because technological growth is smaller in the booming sector and the non-tradable sector than the non-booming tradable sector. Because that economy had smaller technological growth than did other countries, its comparative advantage in non-booming tradable goods will have shrunk, thus leading firms not to invest in the tradables sector.
Also, volatility in the price of natural resources, and thus the real exchange rate, limits investment by private firms, because firms will not invest if they are not sure what the future economic conditions will be. Commodity exports such as raw materials, drive up the value of the currency. This is what leads to the lack of competition in the other sectors of the economy. The extraction of natural resources is also extremely capital intensive, resulting in few new jobs being created.
There are two basic ways to reduce the threat of Dutch disease: slowing the appreciation of the real exchange rate, and boosting the competitiveness of the adversely affected sectors. One approach is to sterilize the boom revenues, that is, not to bring all the revenues into the country all at once, and to save some of the revenues abroad in special funds and bring them in slowly. In developing countries, this can be politically difficult as there is often pressure to spend the boom revenues immediately to alleviate poverty, but this ignores broader macroeconomic implications.
Another strategy for avoiding real exchange rate appreciation is to increase saving in the economy in order to reduce large capital inflows which may appreciate the real exchange rate. This can be done if the country runs a budget surplus. A country can encourage individuals and firms to save more by reducing income and profit taxes. By increasing saving, a country can reduce the need for loans to finance government deficits and foreign direct investment.
Investments in education and infrastructure can increase the competitiveness of the lagging manufacturing or agriculture sector. Another approach is government protectionism of the lagging sector, that is, increase in subsidies or tariffs. However, this could worsen the effects of Dutch disease, as large inflows of foreign capital are usually provided by the export sector and bought up by the import sector. Imposing tariffs on imported goods will artificially reduce that sector's demand for foreign currency, leading to further appreciation of the real exchange rate.
It is usually difficult to be certain that a country has Dutch disease because it is difficult to prove the relationship between an increase in natural resource revenues, the real-exchange rate, and a decline in the lagging sector. An appreciation in the real exchange rate could be caused by other things such as productivity increases in the Balassa-Samuelson effect, changes in the terms of trade and large capital inflows. Often these capital inflows are caused by foreign direct investment or to finance a country's debt.
Canada's rising dollar due to foreign demand for natural resources, with the Athabasca oil sands becoming increasingly dominant, hampered its manufacturing sector from the early 2000s until the oil price crash in late 2014/early 2015.
Indonesia's greatly increased export revenues after the oil booms in 1974 and 1979
Nigeria and other post-colonial African states in the 1990s
Post-disaster booms accompanied by inflation following the provision of large amounts of relief and recovery assistance such as occurred in some places in Asia following the Asian tsunami in 2004
Venezuelan oil during the 2000s. Using the official exchange rate, Caracas is the most expensive city in the world, though the black market exchange rate is said to be as much as a hundred times as many bolivares to the dollar as the official one. Being a large exporter of oil revenues also keeps the currency's value above what it would otherwise be.
Analysts have argued that the United Kingdom's increasing reliance on the Financial Sector since the 'Big Bang' in 1986 is preventing manufacturing growth. A similar argument has been made regarding London's booming property market. This financial sector growth has been concentrated, almost exclusively, on the City of London exacerbating regional economic differences such as the North-South divide - the North previously having a strong industrial and manufacturing base. Paul Krugman (among others) has written about the effect of a strong financial sector on UK manufacturing and a potential readjustment following Brexit, should the financial sector reduce its reliance on London.
^Ebrahim-zadeh, Christine (March 2003). "Back to Basics - Dutch Disease: Too much wealth managed unwisely". Finance and Development, A quarterly magazine of the IMF. IMF. Archived from the original on 17 June 2008. Retrieved 2008. This syndrome has come to be known as "Dutch disease". Although the disease is generally associated with a natural resource discovery, it can occur from any development that results in a large inflow of foreign currency, including a sharp surge in natural resource prices, foreign assistance, and foreign direct investment. Economists have used the Dutch disease model to examine such episodes, including the impact of the flow of American treasures into sixteenth-century Spain and gold discoveries in Australia in the 1850s.
^"The Dutch Disease". The Economist. 26 November 1977. p. 82-83.
^"Our Continent, Our Future"Archived 16 April 2007 at the Wayback Machine, Mkandawire, T. and C. Soludo. "In most recent attempts to explain Africa's performance with growth and investment regressions, studies find that inaccessible location, poor port facilities, and the 'Dutch Disease' syndrome, caused by large natural-resource endowments, constitute serious impediments to investment and growth".