{"id":3635,"date":"2023-07-15T07:53:45","date_gmt":"2023-07-15T05:53:45","guid":{"rendered":"https:\/\/ssad.statistics.sk\/SSaD\/?p=3635"},"modified":"2023-07-17T13:44:33","modified_gmt":"2023-07-17T11:44:33","slug":"hedonicky-index-spotrebitelskych-cien-diagnostika-a-analyza-rozptylu","status":"publish","type":"post","link":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/hedonicky-index-spotrebitelskych-cien-diagnostika-a-analyza-rozptylu\/","title":{"rendered":"Hedonick\u00fd index spotrebite\u013esk\u00fdch cien: diagnostika a anal\u00fdza rozptylu"},"content":{"rendered":"<p>Peter Kn\u00ed\u017eat, \u0160tatistick\u00fd \u00farad Slovenskej republiky, Ekonomick\u00e1 univerzita v Bratislave, Slovensk\u00e1 republika<\/p>\n<p><!--more--><\/p>\n<p>Typ \u010dl\u00e1nku: vedeck\u00fd \u010dl\u00e1nok<br \/>\nStrany: 21 &#8211; 38<\/p>\n<h5>Abstrakt<\/h5>\n<p>Web scrapovanie poskytuje nov\u00fd inovat\u00edvny zdroj \u00fadajov, ktor\u00fd m\u00f4\u017eu n\u00e1rodn\u00e9 \u0161tatistick\u00e9 \u00farady vyu\u017ei\u0165 v cenovej \u0161tatistike. Ceny produktov sa automaticky s\u0165ahuj\u00fa z internetu, \u010do umo\u017e\u0148uje \u0161ir\u0161\u00ed v\u00fdber reprezentat\u00edvnych produktov v spotrebnom ko\u0161i. \u010eal\u0161ou v\u00fdhodou scrapovania online cien je, \u017ee pou\u017e\u00edvate\u013e m\u00f4\u017ee z\u00edska\u0165 charakteristick\u00e9 parametre jednotliv\u00fdch produktov. Tieto parametre sa vyu\u017e\u00edvaj\u00fa pri v\u00fdpo\u010dte hedonick\u00e9ho cenov\u00e9ho indexu, ktor\u00fd je vhodnej\u0161\u00ed pre produkty s vysokou mierou fluktu\u00e1cie. Hedonick\u00e1 regresia predpoklad\u00e1, \u017ee prirodzen\u00fd logaritmus ceny produktu mo\u017eno vysvetli\u0165 jeho charakteristick\u00fdmi parametrami. V mnoh\u00fdch predch\u00e1dzaj\u00facich v\u00fdskumoch autori odhadn\u00fa hedonick\u00e9 cenov\u00e9 indexy r\u00f4znych produktov bez toho aby \u0161tatisticky vyhodnotili spr\u00e1vnos\u0165 regresn\u00e9ho modelu. V tomto \u010dl\u00e1nku vykon\u00e1me d\u00f4kladn\u00fa anal\u00fdzu hedonick\u00e9ho regresn\u00e9ho modelu, ktor\u00e1 zah\u0155\u0148a kontrolu diagnostiky modelu a jeho po\u010diato\u010dn\u00fdch predpokladov. Okrem toho pou\u017eijeme anal\u00fdzu rozptylu na testovanie kontrastov medzi kateg\u00f3riami pre jednotliv\u00e9 charakteristick\u00e9 parametre. Kateg\u00f3rie bez kontrastu sa potom zl\u00fa\u010dia a hedonick\u00fd cenov\u00fd index sa prepo\u010d\u00edta. V empirickej \u0161t\u00fadii vypo\u010d\u00edtame a porovn\u00e1vame hedonick\u00e9 cenov\u00e9 indexy pre r\u00f4zne pr\u00edpady, vyu\u017eit\u00edm web scrapovan\u00fdch cien produktu zo slovensk\u00e9ho trhu.<\/p>\n<div>\n<span style=\"line-height: 2.1em; padding-left: 0px; color: #1e4e9d;\">\u010cl\u00e1nok na stiahnutie<\/span><br \/>\n<a class=\"download-pdf\" onclick=\"window.open('https:\/\/ssad.statistics.sk\/SSaD\/?dl_id=355','new','');return false\"  href=\"https:\/\/ssad.statistics.sk\/SSaD\/?dl_id=355\"><i class=\"far fa-file-pdf\"><\/i> PDF<\/a><span class='download-text'> (4,2 MB, 373 stiahnut\u00ed)<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Peter Kn\u00ed\u017eat, \u0160tatistick\u00fd \u00farad Slovenskej republiky, Ekonomick\u00e1 univerzita v Bratislave, Slovensk\u00e1 republika<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[1640],"tags":[1588,1650,1578,1649,1651,1648],"class_list":["post-3635","post","type-post","status-publish","format-standard","hentry","category-3-2023-vedecke-clanky","tag-autor-peter-knizat","tag-hedonicka-regresia","tag-index-spotrebitelskych-cien","tag-online-ceny","tag-regresia-s-casovo-umelou-premennou","tag-web-scrapovanie"],"_links":{"self":[{"href":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/wp-json\/wp\/v2\/posts\/3635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/wp-json\/wp\/v2\/comments?post=3635"}],"version-history":[{"count":2,"href":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/wp-json\/wp\/v2\/posts\/3635\/revisions"}],"predecessor-version":[{"id":3668,"href":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/wp-json\/wp\/v2\/posts\/3635\/revisions\/3668"}],"wp:attachment":[{"href":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/wp-json\/wp\/v2\/media?parent=3635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/wp-json\/wp\/v2\/categories?post=3635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ssad.statistics.sk\/SSaD\/index.php\/wp-json\/wp\/v2\/tags?post=3635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}