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Gene Ellis

Suspension Bridges - Inca - Andes - New York Times - 0 views

www.nytimes.com/...08bridg.html

General inca suspension bridges

shared by Gene Ellis on 19 Feb 15 - Cached
  • “Mexicans discovered vulcanization 3,500 years before Goodyear,” said Dorothy Hosler, an M.I.T. professor of archaeology and ancient technology. “The Spanish had never seen anything that bounced like the rubber balls of Mexico.”
  • Dr. Ochsendorf, a specialist in early architecture and engineering, said the colonial government tried many times to erect European arch bridges across the canyons, and each attempt ended in fiasco until iron and steel were applied to bridge building.
  • The Inca suspension bridges achieved clear spans of at least 150 feet, probably much greater. This was a longer span than any European masonry bridges at the time. The longest Roman bridge in Spain had a maximum span between supports of 95 feet. And none of these European bridges had to stretch across deep canyons.
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  • Similar bridges existed in other mountainous regions of the world, most notably in the Himalayas and in ancient China, where iron chain suspension bridges existed in the third century B.C.”
  • The last existing Inca suspension bridge, at Huinchiri, near Cuzco, is virtually rebuilt each year. People from the villages on either side hold a three-day festival and gather stiff grasses for producing more than 50,000 feet of cord. Finally, the cord is braided into 150-foot replacement cables.
Gene Ellis

Euro Crisis: Italy 'To Dump Public Holidays' - Yahoo! Eurosport UK - 0 views

uk.eurosport.yahoo.com/...lidays-121903420--finance.html

shared by Gene Ellis on 19 Jul 12 - No Cached
  • As a result, technocrat prime minister Mario Monti is considering cutting back on public holidays in a bid to increase growth after officials said even slashing days off by a working week would boost growth and raise GDP by as much as 1%.
  • Italy has a total of 11 recognised public holidays a year but unlike Britain these remain fixed and if they fall mid-week people traditionally take the days off either side as well in order to ''make a bridge'' until the weekend, which has drastic consequences on industrial output.
  • Sources say the Government will keep the ''main religious festivals such as Easter and Christmas'' but are looking at scrapping some of the secondary ones such as Boxing Day, Epiphany on January 6th and the Immaculate Conception on December 8th.
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  • One idea drawn up by ministers Antonio Catricala and Antonio Polillo, from the Finance ministry, is to move them and the military holidays to the nearest Sunday so they will in effect still be celebrated but not on the specific date itself.
  • 'These holidays represent the best of our past, the values on which our Republic was founded on, they are in a word history and they should not be touched. You cannot tell us that there are no other ways of boosting productivity and increasing growth. ''The country should be left its history and it should be allowed to conserve its values, values that the majority of the country are fully supportive of, that is what we are asking the government to remember.''
Gene Ellis

Germany's Insistence on Austerity Meets With Revolt in the Eurozone - NYTimes.com - 0 views

www.nytimes.com/...s-insistence-on-austerity.html

shared by Gene Ellis on 18 Feb 15 - No Cached
  • Germany’s Insistence on Austerity Meets With Revolt in the Eurozone
  • Ms. Merkel and her finance minister, Wolfgang Schäuble, are far more likely to stick to balancing Germany’s federal budget, “a very strange objective to announce in current circumstances,” Mr. Fratzscher, who is president of the German Institute of the Economy in Berlin, said in an interview.
  • While they may agree to increase spending on roads, bridges and other infrastructure in Germany, he added, the German leaders are not likely to back similar policies for France and Italy, which in Berlin’s view cannot afford it.
Gene Ellis

Learning about global value chains by looking beyond official trade data: Part 1 | vox - 0 views

www.voxeu.org/...ond-official-trade-data-part-1

shared by Gene Ellis on 25 Apr 14 - No Cached
  • Gross trade accounting: A transparent method to discover global value chain-related information behind official trade data: Part 1
  • With the rapid increase in intermediate trade flows, trade economists and policymakers have reached a near consensus that official trade statistics based on gross terms are deficient, often hiding the extent of global value chains. There is also widespread recognition among the official international statistics agencies that fragmentation of global production requires a new approach to measure trade, in particular the need to measure trade in value-added. This led the WTO and the OECD to launch a joint “Measuring Trade in Value-Added” initiative on 15 March 2012, which is designed to mainstream the production of trade in value-added statistics and make them a permanent part of the statistical landscape.
  • All the estimation methods used in recent efforts to measure trade in value-added are rooted in Leontief (1936). His work demonstrated that the amount and type of intermediate inputs needed in the production of one unit of output can be estimated based on the input-output structures across countries and industries.
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  • If one is only interested in estimating the domestic value-added embedded in a country’s or sector’s gross exports, applying Leontief’s insight is sufficient. However, for many economic and policy applications, one also needs to quantify other components in gross exports and their structures. In such circumstances Leontief’s original insight is not sufficient, as it does not provide a way to decompose intermediate trade flows across countries into various value-added terms according to their final absorption,
  • Our gross trade accounting framework in fact allows one to further decompose each of the four major parts of gross exports above into finer components with economic interpretations
  • By the gross statistics, presented in column 1 of Table 1, the trade is highly imbalanced – Chinese exports to the US ($176.9 billion in 2011) are five times that of US exports to China ($35.1 billion in 2011). If we separate exports of final goods and of intermediate goods (reported in columns 2a and 2b of Table 1), we see that most of the Chinese exports consist of final goods, whereas most of the US exports consist of intermediate goods.
  • In other words, the US exports rely overwhelmingly on its own value-added (only 2.1% from China and 5.8% from other countries in 2011), whereas the Chinese exports use more foreign value-added, especially value-added from third countries (with 3.2% from the US and 23.1% from Japan, Korea, and all other countries).
  • As a consequence of these differences in the structure of value-added composition, the China–US trade balance in this sector looks much smaller when computed in terms of domestic value-added than in terms of gross exports.
  • By identifying which parts of the official data are double counted and the sources of the double counting, our gross trade accounting method provides a transparent way to bridge official trade statistics (in gross terms) and national accounts (in value-added terms) consistent with the System of National Accounts standard.
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