{"id":977,"date":"2026-02-11T09:49:12","date_gmt":"2026-02-11T08:49:12","guid":{"rendered":"https:\/\/marbefes.lifewatch.eu\/?post_type=project&#038;p=977"},"modified":"2026-03-03T15:22:04","modified_gmt":"2026-03-03T14:22:04","slug":"75-economic-stated-preference-method","status":"publish","type":"project","link":"https:\/\/marbefes.lifewatch.eu\/index.php\/project\/75-economic-stated-preference-method\/","title":{"rendered":"75 &#8211; Economic &#8211; Stated preference method"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;-150px||||false|false&#8221; border_color_all=&#8221;RGBA(255,255,255,0)&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_fullwidth_header button_one_text=&#8221;Tools&#8221; button_two_text=&#8221;Toolbox home&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; title_text_color=&#8221;#143F6C&#8221; 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button_text=&#8221;Toolbox home&#8221; button_alignment=&#8221;left&#8221; _builder_version=&#8221;4.27.4&#8243; _dynamic_attributes=&#8221;button_url&#8221; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;22px&#8221; button_text_color=&#8221;#143F6C&#8221; button_border_width=&#8221;0px&#8221; button_use_icon=&#8221;off&#8221; custom_margin=&#8221;|0px|0px||false|false&#8221; custom_padding=&#8221;|0px||0px|false|false&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][et_pb_column type=&#8221;1_5&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_gallery gallery_ids=&#8221;1282&#8243; fullwidth=&#8221;on&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; box_shadow_style=&#8221;preset2&#8243; box_shadow_horizontal=&#8221;7px&#8221; box_shadow_vertical=&#8221;10px&#8221; box_shadow_blur=&#8221;12px&#8221; box_shadow_spread=&#8221;-5px&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_gallery][et_pb_tabs _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_tab title=&#8221;Tools details&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<ul>\n<li><strong><span>Category: <\/span><\/strong><span>Economical<\/span><\/li>\n<li><strong><span>Subcategory: <\/span><\/strong><span>Economic valuation of ecosystem services; Valuation of environmental goods &amp; societal benefits<\/span><\/li>\n<li><strong><span>Tool Type: <\/span><\/strong><span>Modeling approaches-Econometric model<\/span><\/li>\n<li><strong><span>Input data: <\/span><\/strong><span>Respondent\u2019s choices among different policy alternatives (for discrete choice studies)\/ willingness to pay for a policy scenario (for contingent valuation studies). Socioeconomic information (such as gender, age, income, etc.) and attitudinal questions.<\/span><\/li>\n<li><strong><span>Output: <\/span><\/strong>Willingness to pay (WTP) for a change in an environmental attribute or a scenario<strong>.<\/strong><\/li>\n<li><strong><span>Target users: <\/span><\/strong><span>Researchers \/ Trained practitioners<\/span><\/li>\n<li><strong><span>Location tested:\u00a0<\/span><\/strong><span>Gulf of Gdansk, Southern Gulf of Biscay<\/span><\/li>\n<li><strong><span>Level of uncertainty: <\/span><\/strong><span>Confidence intervals can be estimated after the model estimation. Uncertainty is therefore quantifiable and context-specific<strong>.<\/strong><\/span><\/li>\n<\/ul>\n<p>[\/et_pb_tab][et_pb_tab title=&#8221;Technical details&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<ul>\n<li><strong><span>Version:\u00a0<\/span><\/strong><\/li>\n<li><strong><span>Publication:<\/span><\/strong><\/li>\n<li><strong><span>Rights:\u00a0<\/span><\/strong><\/li>\n<li><strong><span>Difficulty level of implementation: <\/span><\/strong><span>Complex<\/span><\/li>\n<li><strong><span>Skill required (for method use): <\/span><\/strong><span>Knowledge of discrete choice models and the contingent valuation method, skill in using statistical software<\/span><\/li>\n<\/ul>\n<p>[\/et_pb_tab][et_pb_tab title=&#8221;Developer information&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<ul>\n<li><strong><span>Authors: <\/span><\/strong><\/li>\n<li><span><strong>Task Leader:<\/strong> Carlo Fezzi. <\/span><\/li>\n<li><span><strong>Authors<\/strong>: Nan Zhang, Marco Tomasi<\/span><\/li>\n<li><strong><span>Tool contributors:<\/span><\/strong><\/li>\n<li><strong><span>Project general coordinator: <\/span><\/strong><\/li>\n<li><strong><span>Project Scientific manager:\u00a0<\/span><\/strong><\/li>\n<li><strong>Project manager:\u00a0<\/strong><\/li>\n<\/ul>\n<p>[\/et_pb_tab][et_pb_tab title=&#8221;Citation&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<ul>\n<li>Boyle K. (2017). Contingent Valuation in Practice. In Champ P.A., Boyle K., Brown T.C. (eds), A Primer on Non-market Valuation (pp.83\u2013131). Dordrecht: Springer.<\/li>\n<li>Mitchell, R.C., Carson, R.T. (1989). Using Surveys to Value Public Goods: The Contingent Valuation Method. Resources for the Future, Washington DC.<\/li>\n<li>Riera P., Signorello G., Thiene M., Mahieu P.A., Navrud S., Kaval P., Rulleau B., Mavsar R., Madureira L., Meyerhoff J., Elsasser P., Notaro S., De Salvo M., Giergiczny M., Dragoi S. (2012). Non-market valuation of forest goods and services: Good practice guidelines. Journal of Forest Economics, 18(4), 259\u2013270.<\/li>\n<\/ul>\n<p>[\/et_pb_tab][et_pb_tab title=&#8221;Contact&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<ul>\n<li><strong><span>Contact<\/span><\/strong>\n<ul>\n<li><strong><span>Name:\u00a0<\/span><\/strong><\/li>\n<li><strong><span>Organization: <\/span><\/strong><\/li>\n<li><strong><span>Email: <\/span><\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>[\/et_pb_tab][\/et_pb_tabs][\/et_pb_column][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_text_color=&#8221;#000000&#8243; header_3_text_color=&#8221;#000000&#8243; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3><strong>Stated Preference Methods &#8211; SPM<\/strong><\/h3>\n<p><span>Stated Preference (SP) methods are survey-based approaches to non-market valuation. A sample of the reference population is asked to complete a questionnaire where a good or service is offered in a hypothetical market, for example, the improvements in water quality or biodiversity associated with an intervention policy. Willingness to pay (WTP) for the good is then estimated using statistical procedures. <\/span><\/p>\n<p><span>The main advantage of SP methods over Revealed Preference (RP) methods is that they allow the estimation of non-use and option values. Their main disadvantage is hypothetical bias since respondents state their preferences in a hypothetical market (Boyle, 2017). For example, respondents may provide an inaccurate WTP of hypothetical goods\/services due to a lack of understanding or familiarity.<\/span><\/p>\n<p><span>SP methods are categorized into Contingent Valuation (CV) and Discrete Choice Experiments (DCE). In CV surveys, people are asked to state their willingness to pay (WTP) or willingness to accept (WTA) for a hypothetical change in the provision of a good (Mitchell &amp; Carson, 1989). In DCE surveys, respondents are asked to make choices over goods or policies, defined in terms of attributes and levels in hypothetical alternative scenarios. That is, CV considers the good (e.g., the non-market value of a beach) as a whole and DCE as a \u201cbundle of attributes\u201d (Riera et al., 2012).<\/span><\/p>\n<ul>\n<li><strong><span>Availability \/ URL:<\/span><\/strong><\/li>\n<\/ul>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/marbefes.lifewatch.eu\/wp-content\/uploads\/2026\/02\/75_GuideStatedPreference.pdf&#8221; button_text=&#8221;Guidelines for the application of SPM&#8221; button_alignment=&#8221;left&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;18px&#8221; button_text_color=&#8221;#FFFFFF&#8221; button_bg_color=&#8221;#102945&#8243; button_border_width=&#8221;0px&#8221; button_border_radius=&#8221;30px&#8221; button_font=&#8221;Lato||||||||&#8221; button_icon=&#8221;&#xe092;||divi||400&#8243; button_icon_color=&#8221;#FFFFFF&#8221; button_on_hover=&#8221;off&#8221; background_layout=&#8221;dark&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;|700|||||||&#8221; header_2_font=&#8221;|700|||||||&#8221; header_3_font=&#8221;|700|||||||&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3>Related Tools:<\/h3>\n<p>[\/et_pb_text][et_pb_code _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243; custom_padding=&#8221;||5px|||&#8221;][\/et_pb_code][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Stated Preference methods are survey-based approaches to non-market valuation. <\/p>\n","protected":false},"author":1,"featured_media":1282,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[51,54,39,52,37,108,70,41,89,50,119,46,135,53,64,76,58,47,66,86,138,106,129],"project_tag":[],"class_list":["post-977","project","type-project","status-publish","has-post-thumbnail","hentry","category-generating-understanding-data","category-researchers","category-economical","category-decision-making","category-main-category","category-quantitative-analytical","category-modeling-approaches","category-subtopic","category-economical-input","category-purpose","category-economic-values","category-economic-valuation-of-ecosystem-services","category-gulf-of-gdansk","category-target-user","category-surveys","category-econometric-model","category-data-type","category-valuation-of-environmental-goods-societal-benefits","category-tool-type","category-input","category-southern-gulf-of-biscay","category-output","category-location-tested"],"_links":{"self":[{"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/project\/977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/project"}],"about":[{"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/types\/project"}],"author":[{"embeddable":true,"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/comments?post=977"}],"version-history":[{"count":17,"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/project\/977\/revisions"}],"predecessor-version":[{"id":1529,"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/project\/977\/revisions\/1529"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/media\/1282"}],"wp:attachment":[{"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/media?parent=977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/categories?post=977"},{"taxonomy":"project_tag","embeddable":true,"href":"https:\/\/marbefes.lifewatch.eu\/index.php\/wp-json\/wp\/v2\/project_tag?post=977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}