{"id":171,"date":"2009-03-17T15:23:08","date_gmt":"2009-03-17T20:23:08","guid":{"rendered":"http:\/\/scripts.mit.edu\/~zong\/wpress\/?p=171"},"modified":"2009-03-17T15:35:30","modified_gmt":"2009-03-17T20:35:30","slug":"saving-vs-consumption-as-default-actions","status":"publish","type":"post","link":"https:\/\/blog.yhuang.org\/?p=171","title":{"rendered":"saving vs. consumption as default actions"},"content":{"rendered":"<p>Lately, for good reason, there has been many advice columns telling people how to plan for personal financial goals. It always used to boggle my mind when I heard exhortations to save, where &#8220;save&#8221; is used in the sense of an action among which to choose, parallel to things like &#8220;invest&#8221; or &#8220;work&#8221;. Until I realized, some years back, that to save <em>is<\/em> a parallel action of choice to some.<br \/>\n<!--more--><br \/>\nI guess I&#8217;ve never had that notion. To me, saving isn&#8217;t something to <em>do<\/em>, it&#8217;s what happens by itself, by default, if you do nothing. How can you &#8220;invest&#8221; or do anything else without already having saved? It&#8217;s more like the base case underlying most other actions that occur at a hierarchically higher level. This notion is tightly coupled with the other notion that to borrow is only a time shift where you temporarily go into negative territory for a short time out of necessity (like in an emergency). This is typically risk averse behavior.<\/p>\n<p>Now let&#8217;s turn to the other model of behavior, where things are swapped around. Here, consumption is the default. To consume is what happens if you do nothing; that is the raison d&#8217;etre. All other actions service that need. In other words, why <em>bother<\/em> to &#8220;save&#8221; or &#8220;invest&#8221; or &#8220;work&#8221; if you do not consume? See how this is inverted? Again, this is tightly coupled with the notion that borrowing is a tool of persistent leverage for greater return. This is typically risk taking behavior, in technical parlance of course.<\/p>\n<p>To make the cases even more distinct, here are two graphs of model behaviors:<\/p>\n<p>&#8220;savers&#8221;<br \/>\n<img decoding=\"async\" align=\"bottom\" alt=\"Input: digraph G {\nrankdir=BT\nnode [shape = rect];\n{save [style = filled, color=lightgrey] }\n{rank=same; invest consume work}\nwork-&gt;save\nsave-&gt;invest-&gt;save\nsave-&gt;consume\n}\" src=\"https:\/\/blog.yhuang.org\/wp-content\/uploads\/images\/3bfd3f59a8d6581378e6899fa2bc7124.png\" \/><\/p>\n<p>&#8220;consumers&#8221;<br \/>\n<img decoding=\"async\" align=\"bottom\" alt=\"Input: digraph G {\nrankdir=TB\nnode [shape = rect];\n{consume [style = filled, color=lightgrey] invest save work}\ninvest-&gt;consume\nsave-&gt;consume\nwork-&gt;consume\n}\" src=\"https:\/\/blog.yhuang.org\/wp-content\/uploads\/images\/2bd2034da4ff178e165fd22421c3ec9e.png\" \/><\/p>\n<p>So people try to analyze why East Asia saves so much and why China especially cannot get internal demand going due to excess savings, whether it&#8217;s because of the lack of a social safety net, or because of an inequitable distribution of wealth. Yes, these have some effects, but no. I don&#8217;t think those are why. It has to do with how personal financial behavior is internalized from the past, as much as influenced by conditions in the present. I think risk averse behavior is ingrained into people in times of scarcity (credit scarcity or capital scarcity) and how long this behavior lasts depends on the severity of a downturn and the subsequent period of prosperity. (As an aside, it can be argued that risk taking behavior isn&#8217;t entirely risk taking behavior but partly a bad estimation of the actual risk.)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lately, for good reason, there has been many advice columns telling people how to plan for personal financial goals. It always used to boggle my mind when I heard exhortations to save, where &#8220;save&#8221; is used in the sense of an action among which to choose, parallel to things like &#8220;invest&#8221; or &#8220;work&#8221;. Until I [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1850,937,940,941,936,938,37,934,935,939],"class_list":["post-171","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-advice-columns","tag-base-case","tag-behavior","tag-consumption","tag-default-actions","tag-digraph","tag-model","tag-model-behaviors","tag-negative-territory","tag-notion"],"_links":{"self":[{"href":"https:\/\/blog.yhuang.org\/index.php?rest_route=\/wp\/v2\/posts\/171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.yhuang.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.yhuang.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.yhuang.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.yhuang.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=171"}],"version-history":[{"count":0,"href":"https:\/\/blog.yhuang.org\/index.php?rest_route=\/wp\/v2\/posts\/171\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.yhuang.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.yhuang.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.yhuang.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}