Jevons paradox
In economics, Jevons paradox is a paradox about resource usage. It is also called Jevons effect, after William Stanley Jevons who first observed it in 1865. Jevons observed that the steam engine James Watt had developed was much more efficient than the earlier model of Thomas Newcomen. Despite this, the use of coal in England increased. The improvements James Watt had introduced made coal a cheap source of energy. As a consequence, Watt's steam engine was more popular, and its use was more widespread. So even though each steam engine used less coal, the demand for coal increased, as there were more steam engines.
Jevons Paradox Media
William Stanley Jevons, after whom the effect is named
Elastic Demand: A 20% increase in efficiency causes a 40% increase in travel. Fuel consumption increases and the Jevons paradox occurs.
- Error creating thumbnail: About to transcode 1 SVG file(s)
Converting InelasticDemand.svg to /var/www/html/w/images/temp/transform_662f64884138.png ... org.apache.batik.transcoder.TranscoderException: null Enclosed Exception: The current document is unable to create an element of the requested type (namespace: http://www.w3.org/2000/svg, name: flowRoot). at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(XMLAbstractTranscoder.java:134) at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(SVGAbstractTranscoder.java:158) at org.apache.batik.apps.rasterizer.SVGConverter.transcode(SVGConverter.java:1008) at org.apache.batik.apps.rasterizer.SVGConverter.execute(SVGConverter.java:719) at org.apache.batik.apps.rasterizer.Main.execute(Main.java:956) at org.apache.batik.apps.rasterizer.Main.main(Main.java:1009) Caused by: org.w3c.dom.DOMException: The current document is unable to create an element of the requested type (namespace: http://www.w3.org/2000/svg, name: flowRoot). at org.apache.batik.dom.AbstractNode.createDOMException(AbstractNode.java:408) at org.apache.batik.anim.dom.SVGDOMImplementation.createElementNS(SVGDOMImplementation.java:203) at org.apache.batik.anim.dom.SVGOMDocument.createElementNS(SVGOMDocument.java:373) at org.apache.batik.dom.util.SAXDocumentFactory.startElement(SAXDocumentFactory.java:651) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:374) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2783) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:601) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:112) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:504) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:841) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:770) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:642) at org.apache.batik.dom.util.SAXDocumentFactory.createDocument(SAXDocumentFactory.java:453) at org.apache.batik.dom.util.SAXDocumentFactory.createDocument(SAXDocumentFactory.java:357) at org.apache.batik.anim.dom.SAXSVGDocumentFactory.createDocument(SAXSVGDocumentFactory.java:203) at org.apache.batik.anim.dom.SAXSVGDocumentFactory.createDocument(SAXSVGDocumentFactory.java:283) at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(XMLAbstractTranscoder.java:129) ... 5 more ... error (SVGConverter.error.while.rasterizing.file)
Inelastic Demand: A 20% increase in efficiency causes a 10% increase in travel. The Jevons paradox does not occur.
