{"id":34205,"date":"2018-05-13T08:13:28","date_gmt":"2018-05-13T13:13:28","guid":{"rendered":"http:\/\/olduvai.ca\/?p=34205"},"modified":"2018-05-13T08:13:28","modified_gmt":"2018-05-13T13:13:28","slug":"how-the-economy-works-as-it-reaches-energy-limits-an-introduction-for-actuaries-and-others","status":"publish","type":"post","link":"https:\/\/olduvai.ca\/?p=34205","title":{"rendered":"How the Economy Works as It Reaches Energy Limits \u2014 An Introduction for Actuaries and\u00a0Others"},"content":{"rendered":"<h3 class=\"entry-title\"><a href=\"https:\/\/ourfiniteworld.com\/2018\/05\/11\/how-the-economy-works-as-it-reaches-energy-limits-an-introduction-for-actuaries-and-others\/\" rel=\"bookmark\">How the Economy Works as It Reaches Energy Limits \u2014 An Introduction for Actuaries and\u00a0Others<\/a><\/h3>\n<div class=\"entry-content\">\n<p>Why have long-term interest rates generally fallen since 1981? Why have asset prices risen? Can these trends be expected to continue? The standard evaluation approach by actuaries and economists seems to be to look at past patterns and assume that they will be repeated.<\/p>\n<p>The catch is that energy consumption growth plays a hugely important role in GDP growth. It also plays an important role in interest rates that businesses and governments can afford to pay. Energy consumption growth has been slowing; it is hard to see how growth in energy consumption can ramp back up materially in the future.<\/p>\n<p>Slowing growth in energy consumption puts the world on track for a future like the 1930s, or even worse. It is hard to see how GDP growth, interest rates, and inflation rates can ramp up in the future. More likely, asset price bubbles will pop, leading to significant financial distress. Derivatives may be affected by rapid changes in prices and currency relativities, as asset bubbles pop.<\/p>\n<p>The article that follows is a partial write-up of a long talk I gave to a group of life and annuity actuaries. (I am a casualty actuary myself, which is a slightly different specialty.) A PDF of my presentation can be found at this link: <a href=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/tverberg-reaching-limits-of-a-finite-world.pdf\">Reaching Limits of a Finite World<\/a><\/p>\n<div id=\"attachment_42791\" class=\"wp-caption aligncenter\" data-shortcode=\"caption\"><a href=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/1-reaching-limits-of-a-finite-world.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-42791\" src=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/1-reaching-limits-of-a-finite-world.png?w=640&amp;h=278\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" srcset=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/1-reaching-limits-of-a-finite-world.png?w=640&amp;h=278 640w, https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/1-reaching-limits-of-a-finite-world.png?w=150&amp;h=65 150w, https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/1-reaching-limits-of-a-finite-world.png?w=300&amp;h=130 300w, https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/1-reaching-limits-of-a-finite-world.png?w=768&amp;h=334 768w, https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/1-reaching-limits-of-a-finite-world.png 999w\" alt=\"\" width=\"640\" height=\"278\" data-attachment-id=\"42791\" data-permalink=\"https:\/\/ourfiniteworld.com\/2018\/05\/11\/how-the-economy-works-as-it-reaches-energy-limits-an-introduction-for-actuaries-and-others\/1-reaching-limits-of-a-finite-world\/\" data-orig-file=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/1-reaching-limits-of-a-finite-world.png?w=640&amp;h=278\" data-orig-size=\"999,434\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"1. Reaching Limits of a Finite World\" data-image-description=\"\" data-medium-file=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/1-reaching-limits-of-a-finite-world.png?w=640&amp;h=278?w=300\" data-large-file=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/1-reaching-limits-of-a-finite-world.png?w=640&amp;h=278?w=640\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Slide 1<\/p>\n<\/div>\n<p>..<\/p>\n<div id=\"attachment_42790\" class=\"wp-caption aligncenter\" data-shortcode=\"caption\"><a href=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/4-question.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-42790\" src=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/4-question.png?w=640&amp;h=221\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" srcset=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/4-question.png?w=640&amp;h=221 640w, https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/4-question.png?w=150&amp;h=52 150w, https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/4-question.png?w=300&amp;h=103 300w, https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/4-question.png?w=768&amp;h=265 768w, https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/4-question.png 940w\" alt=\"\" width=\"640\" height=\"221\" data-attachment-id=\"42790\" data-permalink=\"https:\/\/ourfiniteworld.com\/2018\/05\/11\/how-the-economy-works-as-it-reaches-energy-limits-an-introduction-for-actuaries-and-others\/4-question\/\" data-orig-file=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/4-question.png?w=640&amp;h=221\" data-orig-size=\"940,324\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"4 Question\" data-image-description=\"\" data-medium-file=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/4-question.png?w=640&amp;h=221?w=300\" data-large-file=\"https:\/\/gailtheactuary.files.wordpress.com\/2018\/05\/4-question.png?w=640&amp;h=221?w=640\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Slide 4<\/p>\n<\/div>\n<p><span id=\"more-42789\"><\/span>After the audience had a chance to answer this question (mostly with <em>yes<\/em>), I gave my answer: \u201cYes, indeed, it is possible to build a model that gives misleading results, and not understand the situation.\u201d For example, a flat map works as a perfectly adequate model in some situations. But when longer distances are involved, a globe is needed. A two-dimensional model works for some purposes, but not for others.<\/p>\n<p>&#8230;click on the above link to read the rest of the article&#8230;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>How the Economy Works as It Reaches Energy Limits \u2014 An Introduction for Actuaries and\u00a0Others Why have long-term interest rates generally fallen since 1981? Why have asset prices risen? Can these trends be expected to continue? The standard evaluation approach by actuaries and economists seems to be to look at past patterns and assume that [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[2,3],"tags":[1726,14179,1233,353,431,8150,1232],"class_list":["post-34205","post","type-post","status-publish","format-standard","hentry","category-economics","category-energy-2","tag-asset-prices","tag-energy-limits","tag-gail-tverberg","tag-gdp","tag-interest-rates","tag-limits","tag-our-finite-world"],"_links":{"self":[{"href":"https:\/\/olduvai.ca\/index.php?rest_route=\/wp\/v2\/posts\/34205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/olduvai.ca\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/olduvai.ca\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/olduvai.ca\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/olduvai.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=34205"}],"version-history":[{"count":1,"href":"https:\/\/olduvai.ca\/index.php?rest_route=\/wp\/v2\/posts\/34205\/revisions"}],"predecessor-version":[{"id":34206,"href":"https:\/\/olduvai.ca\/index.php?rest_route=\/wp\/v2\/posts\/34205\/revisions\/34206"}],"wp:attachment":[{"href":"https:\/\/olduvai.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=34205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/olduvai.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=34205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/olduvai.ca\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=34205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}