{"id":5761,"date":"2018-01-02T08:52:25","date_gmt":"2018-01-02T13:52:25","guid":{"rendered":"https:\/\/demand-planning.com\/?page_id=5761"},"modified":"2024-05-06T15:27:53","modified_gmt":"2024-05-06T19:27:53","slug":"ask-dr-jain","status":"publish","type":"page","link":"https:\/\/demand-planning.com\/ask-dr-jain\/","title":{"rendered":"Ask Dr. Jain"},"content":{"rendered":"<h2>Ask the Forecasting &amp; Planning Guru<\/h2>\n<p>Do you have a question you need answering about forecasting and demand planning? Need help with understanding a particular concept, model or process? Dr. Jain is here to help. Ask your question by filling out the form below, and his response will appear here.<\/p>\n<p>Dr. Chaman Jain is the author of <a href=\"https:\/\/bit.ly\/2EA5QQQ\">&#8216;The Fundamentals of Demand Planning and Forecasting&#8217;<\/a>, the seminal work that defined best practices used the world over. He is a Professor of Economics and Finance at St. John&#8217;s University, and editor of the Journal of Business forecasting.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"WAajiijCFP\"><p><a href=\"https:\/\/demand-planning.com\/2023\/09\/25\/how-to-forecast-for-the-toy-industry\/\">Ask Dr. Jain: How to Forecast for the Toy Industry?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Ask Dr. Jain: How to Forecast for the Toy Industry?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2023\/09\/25\/how-to-forecast-for-the-toy-industry\/embed\/#?secret=wG8p4nLRep#?secret=WAajiijCFP\" data-secret=\"WAajiijCFP\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"lbrK2IjGOa\"><p><a href=\"https:\/\/demand-planning.com\/2021\/07\/01\/what-is-forecast-bias\/\">What Is Forecast Bias?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;What Is Forecast Bias?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2021\/07\/01\/what-is-forecast-bias\/embed\/#?secret=oGXLLjHa0u#?secret=lbrK2IjGOa\" data-secret=\"lbrK2IjGOa\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"QkWrunF7P1\"><p><a href=\"https:\/\/demand-planning.com\/2020\/04\/13\/how-do-i-calculate-lost-sales-from-a-stockout\/\">How Do I Calculate Lost Sales From A Stockout?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;How Do I Calculate Lost Sales From A Stockout?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2020\/04\/13\/how-do-i-calculate-lost-sales-from-a-stockout\/embed\/#?secret=sMuLlkwhJ1#?secret=QkWrunF7P1\" data-secret=\"QkWrunF7P1\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"qka4xs1uaP\"><p><a href=\"https:\/\/demand-planning.com\/2019\/09\/23\/where-to-put-the-forecasting-function\/\">Ask Dr. Jain: Where To Put The Forecasting Function For Lowest Forecast Error?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Ask Dr. Jain: Where To Put The Forecasting Function For Lowest Forecast Error?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2019\/09\/23\/where-to-put-the-forecasting-function\/embed\/#?secret=tBVnvDNBjT#?secret=qka4xs1uaP\" data-secret=\"qka4xs1uaP\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"VMrPBHOqES\"><p><a href=\"https:\/\/demand-planning.com\/2019\/05\/01\/upward-and-downward-bias-forecasting\/\">What Is Upward &#038; Downward Bias In Forecasting?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;What Is Upward &#038; Downward Bias In Forecasting?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2019\/05\/01\/upward-and-downward-bias-forecasting\/embed\/#?secret=iZpySTR7wC#?secret=VMrPBHOqES\" data-secret=\"VMrPBHOqES\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"tIIjVMhGlk\"><p><a href=\"https:\/\/demand-planning.com\/2018\/10\/05\/show-management-forecasting-training-drives-profits\/\">Ask Dr. Jain: How Can I Show Management That Forecasting Training Will Increase Profits?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Ask Dr. Jain: How Can I Show Management That Forecasting Training Will Increase Profits?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2018\/10\/05\/show-management-forecasting-training-drives-profits\/embed\/#?secret=QGctW6eEdO#?secret=tIIjVMhGlk\" data-secret=\"tIIjVMhGlk\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"EdmzfEoNzo\"><p><a href=\"https:\/\/demand-planning.com\/2018\/06\/22\/what-are-the-benchmarks-in-retail-forecasting-accuracy\/\">Ask Dr. Jain: What Are The Forecast Accuracy Benchmarks In Retail?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Ask Dr. Jain: What Are The Forecast Accuracy Benchmarks In Retail?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2018\/06\/22\/what-are-the-benchmarks-in-retail-forecasting-accuracy\/embed\/#?secret=JqNuZya4OU#?secret=EdmzfEoNzo\" data-secret=\"EdmzfEoNzo\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"qYTF6LwBNk\"><p><a href=\"https:\/\/demand-planning.com\/2018\/05\/31\/holt-winters-smoothing\/\">Ask Dr. Jain: How Do I Get Started With Holt Winters Exponential Smoothing?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Ask Dr. Jain: How Do I Get Started With Holt Winters Exponential Smoothing?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2018\/05\/31\/holt-winters-smoothing\/embed\/#?secret=PGsqLWYxLF#?secret=qYTF6LwBNk\" data-secret=\"qYTF6LwBNk\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"LWbX8PZIJi\"><p><a href=\"https:\/\/demand-planning.com\/2018\/04\/26\/managing-demand-planners\/\">Ask Dr. Jain: How Can I Gauge Demand Planners&#8217; Performance?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Ask Dr. Jain: How Can I Gauge Demand Planners&#8217; Performance?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2018\/04\/26\/managing-demand-planners\/embed\/#?secret=BUqBRlg6di#?secret=LWbX8PZIJi\" data-secret=\"LWbX8PZIJi\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"S0OpcSRLhX\"><p><a href=\"https:\/\/demand-planning.com\/2018\/04\/11\/implement-demand-planning-in-services-company\/\">Ask Dr. Jain: How Do I Implement Demand Planning For My Services Company?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Ask Dr. Jain: How Do I Implement Demand Planning For My Services Company?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2018\/04\/11\/implement-demand-planning-in-services-company\/embed\/#?secret=HVERzOvJTf#?secret=S0OpcSRLhX\" data-secret=\"S0OpcSRLhX\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"EPm8EaMAf7\"><p><a href=\"https:\/\/demand-planning.com\/2018\/02\/07\/best-mape-formula-to-use-for-forecasting\/\">What Is The Best MAPE Formula To Use for Forecasting?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;What Is The Best MAPE Formula To Use for Forecasting?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2018\/02\/07\/best-mape-formula-to-use-for-forecasting\/embed\/#?secret=meWpPNQDYS#?secret=EPm8EaMAf7\" data-secret=\"EPm8EaMAf7\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"kR2t1OTVU4\"><p><a href=\"https:\/\/demand-planning.com\/2018\/02\/27\/aggregate-forecasting\/\">How Can I show My Company Aggregate Level Forecasting Isn&#8217;t Enough?<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;How Can I show My Company Aggregate Level Forecasting Isn&#8217;t Enough?&#8221; &#8212; Demand Planning, S&amp;OP\/ IBP, Supply Planning, Business Forecasting Blog\" src=\"https:\/\/demand-planning.com\/2018\/02\/27\/aggregate-forecasting\/embed\/#?secret=cy0fA3Tqn4#?secret=kR2t1OTVU4\" data-secret=\"kR2t1OTVU4\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f5763-o1\" lang=\"en-US\" dir=\"ltr\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/wp-json\/wp\/v2\/pages\/5761#wpcf7-f5763-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<div style=\"display: none;\">\n<input type=\"hidden\" name=\"_wpcf7\" value=\"5763\" \/>\n<input type=\"hidden\" name=\"_wpcf7_version\" value=\"5.9.8\" \/>\n<input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/>\n<input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f5763-o1\" \/>\n<input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/>\n<input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/div>\n<p><label> Name (required)<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span> <\/label>\n<\/p>\n<p><label> Email (required)<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span> <\/label>\n<\/p>\n<p><label> Company (required)<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span> <\/label>\n<\/p>\n<p><label> Your Question for Dr. Jain (required)<br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" name=\"your-message\"><\/textarea><\/span> <\/label>\n<\/p>\n<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Send\" \/>\n<\/p><p style=\"display: none !important;\" class=\"akismet-fields-container\" data-prefix=\"_wpcf7_ak_\"><label>&#916;<textarea name=\"_wpcf7_ak_hp_textarea\" cols=\"45\" rows=\"8\" maxlength=\"100\"><\/textarea><\/label><input type=\"hidden\" id=\"ak_js_1\" name=\"_wpcf7_ak_js\" value=\"108\"\/><script>document.getElementById( \"ak_js_1\" ).setAttribute( \"value\", ( new Date() ).getTime() );<\/script><\/p><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Ask the Forecasting &amp; Planning Guru Do you have a question you need answering about forecasting and demand planning? Need help with understanding a particular concept, model or process? Dr. Jain is here to help. Ask your question by filling out the form below, and his response will appear here. Dr. Chaman Jain is the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5765,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-5761","page","type-page","status-publish","has-post-thumbnail"],"_links":{"self":[{"href":"https:\/\/demand-planning.com\/wp-json\/wp\/v2\/pages\/5761"}],"collection":[{"href":"https:\/\/demand-planning.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/demand-planning.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/demand-planning.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/demand-planning.com\/wp-json\/wp\/v2\/comments?post=5761"}],"version-history":[{"count":4,"href":"https:\/\/demand-planning.com\/wp-json\/wp\/v2\/pages\/5761\/revisions"}],"predecessor-version":[{"id":10325,"href":"https:\/\/demand-planning.com\/wp-json\/wp\/v2\/pages\/5761\/revisions\/10325"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demand-planning.com\/wp-json\/wp\/v2\/media\/5765"}],"wp:attachment":[{"href":"https:\/\/demand-planning.com\/wp-json\/wp\/v2\/media?parent=5761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}