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\u03b8\u03ad\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ae\u03c2 \u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03af\u03b1\u03c2, \u03bc\u03b5 \u03b5\u03c0\u03af\u03ba\u03b5\u03bd\u03c4\u03c1\u03bf \u03c4\u03b7\u03bd \u03b4\u03b9\u03b1\u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03ae \u03b5\u03be\u03ad\u03bb\u03b9\u03be\u03b7 \u03c4\u03bf\u03c5 \u0391\u0395\u03a0, \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ce\u03c3\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac \u03c4\u03b7\u03c2 \u03b4\u03b1\u03c0\u03ac\u03bd\u03b7\u03c2, \u03c4\u03b7\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03b5\u03b9\u03c3\u03bf\u03b4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2. \u03a3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1, \u03b1\u03c0\u03bf\u03c4\u03c5\u03c0\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03c4\u03c1\u03ad\u03c7\u03bf\u03c5\u03c3\u03b1 \u03bc\u03b1\u03ba\u03c1\u03bf\u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03b9\u03ba\u03ae \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1, \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03b4\u03b5\u03af\u03ba\u03c4\u03b5\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c3\u03c5\u03c7\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03ac\u03c6\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03af\u03b1\u03c2 : \u03c3\u03c4\u03b7\u03bd \u03b1\u03b3\u03bf\u03c1\u03ac \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2, \u03c3\u03c4\u03b7\u03bd \u03b1\u03b3\u03bf\u03c1\u03ac \u03b1\u03ba\u03b9\u03bd\u03ae\u03c4\u03c9\u03bd, \u03b7 &nbsp;\u03b5\u03be\u03ad\u03bb\u03b9\u03be\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03bb\u03b7\u03b8\u03c9\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd \u03ba\u03b1\u03b9&nbsp; \u03c4\u03bf\u03c5 \u03b9\u03c3\u03bf\u03b6\u03c5\u03b3\u03af\u03bf\u03c5 \u03c4\u03c1\u03b5\u03c7\u03bf\u03c5\u03c3\u03ce\u03bd \u03c3\u03c5\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd.<\/p>\n\n<p>\u039f\u03b9 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ad\u03c8\u03b5\u03b9\u03c2 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03b2\u03b1\u03c3\u03b9\u03ba\u03cc \u03c3\u03b5\u03bd\u03ac\u03c1\u03b9\u03bf, \u03b5\u03c0\u03b9\u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 \u03ba\u03af\u03bd\u03b4\u03c5\u03bd\u03bf\u03b9 \u03c0\u03bf\u03c5 \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03c5\u03bd \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ad\u03c8\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 &nbsp;\u03c0\u03c1\u03bf\u03cb\u03c0\u03bf\u03b8\u03ad\u03c3\u03b5\u03b9\u03c2 \u03ce\u03c3\u03c4\u03b5 \u03b7 \u03b1\u03bd\u03ac\u03c0\u03c4\u03c5\u03be\u03b7 \u03bd\u03b1 \u03b3\u03af\u03bd\u03b5\u03b9 \u03c0\u03b9\u03bf \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03b9\u03bc\u03b7 : \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b8\u03b5\u03c3\u03bc\u03ce\u03bd, \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03b5\u03c0\u03b5\u03bd\u03b4\u03cd\u03c3\u03b5\u03b9\u03c2, \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1, \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b4\u03b9\u03ac\u03c7\u03c5\u03c3\u03b7 \u03ba\u03b1\u03b9\u03bd\u03bf\u03c4\u03bf\u03bc\u03af\u03b1\u03c2, \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b8\u03ad\u03c3\u03b5\u03c9\u03bd \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03bd\u03b5\u03c0\u03ce\u03c2 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b4\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03bf\u03cd \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2. \u03a4\u03ad\u03bb\u03bf\u03c2, \u03b7 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03ba\u03b1\u03c4\u03b1\u03bb\u03ae\u03b3\u03b5\u03b9 \u03c3\u03c4\u03b9\u03c2 \u03b2\u03c1\u03b1\u03c7\u03c5\u03c7\u03c1\u03cc\u03bd\u03b9\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03bc\u03b1\u03ba\u03c1\u03cc\u03c7\u03c1\u03bf\u03bd\u03b5\u03c2 \u03c0\u03c1\u03bf\u03ba\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03b9\u03c2 \u03bf\u03c0\u03bf\u03af\u03b5\u03c2 \u03ba\u03b1\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b9\u03bc\u03b5\u03c4\u03c9\u03c0\u03af\u03c3\u03b5\u03b9 \u03b7 \u03b5\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ae \u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03af\u03b1.<\/p>\n\n<p><strong>Zoom link:&nbsp;<\/strong><a href=\"http:\/\/Zoom link: https:\/\/uoc-gr.zoom.us\/j\/88659969718?pwd=g6bjYPDCuUQo1bzVxjjbgQL4xFN1f3.1\">&nbsp;https:\/\/uoc-gr.zoom.us\/j\/88659969718?pwd=g6bjYPDCuUQo1bzVxjjbgQL4xFN1f3.1<\/a><\/p>\n","image":"https:\/\/9b9ec758578b3ee0d46b-305404f9eb35eaf4130aa2d106c6a91c.ssl.cf3.rackcdn.com\/597\/events\/324\/images\/\/p1jg1nlidd1ul06v9b8213cdog84.jpg","categories":[{"market_cat_id":"548","details":{"id":"548","page_id":"597","created":"2016-08-24 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16:28:27","system_status_id":"67","slug":"policy","lang":"EN","parent_id":"546","sort":"24","redirection_url":null,"redirection_target":null,"schedule_start_date":null,"schedule_end_date":null,"schedule_start_time":null,"schedule_end_time":null,"lft":"48","rgt":"49","level":"2","view_type":"142","hide_entries":"0","hide_details":"0","views":null,"disabled_in_menu":null,"row_products":null,"thumb_shape":null,"cat_id":"563","title":"Policy","subtitle":null,"description":null,"meta_description":"","translation_id":"776"},"render_url":"https:\/\/economics.soc.uoc.gr\/en\/seminars\/topic\/259\/563\/policy"}],"room":{"id":"20","capacity":"45","code":"\u03912-3","page_id":"597","slug":"a2-3","translations":{"EL":{"translation_id":"20","room_id":"20","lang":"EL","equipment":"","code":"\u03912-3"},"EN":{"translation_id":"45","room_id":"20","lang":"EN","equipment":"","code":"\u03912-3"}}},"publisher_profile":{"id":"38974","email":"","firstname":"Zacharias","lastname":"Bragoudakis","title":null,"subtitle":null,"institution":"Bank of Greece","description":null,"avatar":null},"render_url":"https:\/\/economics.soc.uoc.gr\/en\/seminar\/324\/elliniki-oikonomia-paragwgikos-metasximatismos-trexoysa-sygkyria-provlepseis-kai-prokliseis"},{"id":"327","page_id":"597","created":"2026-04-16 11:53:01","system_status_id":"274","system_cat_id":"259","slug":"Multi-period stochastic leader-follower games and supply chain coordination with random cost learning ","seminars_semester":null,"revision_date":null,"publish_date":null,"file_name":null,"file_sample":null,"publisher":"38999","start_date":"Monday, 27 April 2026","end_date":null,"start_time":"11:30","end_time":"13:00","jels":"","keywords":"","url":null,"season":"2026","newsletter_status":"0","always_show":null,"result":null,"title":"Multi-period stochastic leader-follower games and supply chain coordination with random cost learning ","subtitle":null,"description":"<p>We consider a decentralized two-period supply chain in which a manufacturer produces a product with the benefits of cost learning and sells it through a retailer facing a price-dependent demand. The manufacturer&#39;s second-period production cost declines linearly in the first-period production, but with a random learning rate. The manufacturer may or may not have the inventory carryover&nbsp;option. We formulate the problem as a two-period Stackelberg game and obtain its feedback equilibrium solutions explicitly. We then examine the impact of mean learning rate and learning rate variability on the pricing strategies of the channel members, on the manufacturer&#39;s production decisions, and on the retailer&#39;s procurement decisions. We show that as the mean learning rate or the learning rate variability increases, the traditional double marginalization problem becomes more severe, leading to greater efficiency loss in the channel. 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A common feature in related studies is to employ price-based ad hoc proxies to measure product quality. However, high product prices do not necessarily suggest high product quality. Piveteau and Smagghue (J. Int. Econ. 2019, vol. 118, pp. 217-232) propose a methodology that estimates product quality from the demand side and exploits information coming from the importing activity of exporters to deal with the price endogeneity challenge yet requires extensive disaggregated data. This paper builds upon their work and offers a simple instrument-free demand estimation method to infer product quality using the properties of the Gaussian copula. 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The asymmetry is compositional---differential exposure through selection, not differential responsiveness.<\/p>\n\n<p>&nbsp;<\/p>\n\n<p>You may participate online through the following ZOOM credentials<\/p>\n\n<p>https:\/\/uoc-gr.zoom.us\/j\/88177475079?pwd=ik9vJRdyknP8xneS5NumlqgQdnplaz.1<\/p>\n\n<p>Meeting ID: 881 7747 5079<\/p>\n\n<p>Passcode: 941419<\/p>\n\n<p>&nbsp;<\/p>\n","image":"https:\/\/9b9ec758578b3ee0d46b-305404f9eb35eaf4130aa2d106c6a91c.ssl.cf3.rackcdn.com\/597\/main_gallery\/images\/\/p1j6v2jqk01ubjd3114041kj1bfn4.jpg","categories":[{"market_cat_id":"561","details":{"id":"561","page_id":"597","created":"2016-08-24 16:27:22","system_status_id":"67","slug":"applied-research","lang":"EN","parent_id":"546","sort":"20","redirection_url":null,"redirection_target":null,"schedule_start_date":null,"schedule_end_date":null,"schedule_start_time":null,"schedule_end_time":null,"lft":"40","rgt":"41","level":"2","view_type":"142","hide_entries":"0","hide_details":"0","views":null,"disabled_in_menu":null,"row_products":null,"thumb_shape":null,"cat_id":"561","title":"Applied Research","subtitle":null,"description":null,"meta_description":"","translation_id":"774"},"render_url":"https:\/\/economics.soc.uoc.gr\/en\/seminars\/topic\/259\/561\/applied-research"}],"room":{"id":"19","capacity":"45","code":"\u03912-2","page_id":"597","slug":"a2-2","translations":{"EL":{"translation_id":"19","room_id":"19","lang":"EL","equipment":"","code":"\u03912-2"},"EN":{"translation_id":"44","room_id":"19","lang":"EN","equipment":"","code":"\u03912-2"}}},"publisher_profile":{"id":"39012","email":"","firstname":"Christoph","lastname":"Drobner","title":null,"subtitle":null,"institution":"Central European University","description":null,"avatar":null},"render_url":"https:\/\/economics.soc.uoc.gr\/en\/seminar\/329\/overconfidence-correct-underconfidence-persists"}]}]