Tier C — AI-reviewed by GPT-6 Luna, evidence as of 2026-10-19.
As of 2026-10-19 23:03 UTC — source: Polyscan AI review, n=1 for this pair
The review confirmed one divergence: “Different tariff direction and agreement requirement”.
The phrase the review relied on most, one per venue: Kalshi: “committing Canada to reduce, remove, or suspend an existing Canadian tariff on U.S. goods” Polymarket: “to lower US tariffs on Canada”
Kalshi concerns Canada lowering its tariffs on U.S. goods; Polymarket concerns the United States lowering its tariffs on Canadian goods through an accepted bilateral agreement. The commitments run in opposite directions.
Tier C — 1 material divergence
Different tariff direction and agreement requirement
Example: KXCANADAUSTARIFFLOWER-27 — this series recurs; showing the nearest archived instance in our data, not necessarily the exact one reviewed.
When will Canada lower tariffs on the US?
Will the Prime Minister of Canada announce lower tariffs on U.S. goods before Dec 1, 2026?
If the Prime Minister of Canada has personally and officially announced a new decision made after Issuance committing Canada to reduce, remove, or suspend an existing Canadian tariff on U.S. goods after Issuance and before Dec 1, 2026, then the market resolves to Yes.
Will the Prime Minister of Canada announce lower tariffs on U.S. goods before Nov 1, 2026?
If the Prime Minister of Canada has personally and officially announced a new decision made after Issuance committing Canada to reduce, remove, or suspend an existing Canadian tariff on U.S. goods after Issuance and before Nov 1, 2026, then the market resolves to Yes.
Will the Prime Minister of Canada announce lower tariffs on U.S. goods before Oct 1, 2026?
If the Prime Minister of Canada has personally and officially announced a new decision made after Issuance committing Canada to reduce, remove, or suspend an existing Canadian tariff on U.S. goods after Issuance and before Oct 1, 2026, then the market resolves to Yes.
Will the Prime Minister of Canada announce lower tariffs on U.S. goods before Apr 1, 2027?
If the Prime Minister of Canada has personally and officially announced a new decision made after Issuance committing Canada to reduce, remove, or suspend an existing Canadian tariff on U.S. goods after Issuance and before Apr 1, 2027, then the market resolves to Yes.
Will the Prime Minister of Canada announce lower tariffs on U.S. goods before Jan 1, 2027?
If the Prime Minister of Canada has personally and officially announced a new decision made after Issuance committing Canada to reduce, remove, or suspend an existing Canadian tariff on U.S. goods after Issuance and before Jan 1, 2027, then the market resolves to Yes.
US-Canada diplomatic agreement to lower tariffs by...?
US-Canada diplomatic agreement to lower tariffs by October 31?
This market will resolve to “Yes” if a diplomatic agreement between the United States and Canada to lower US tariffs on Canada is announced by October 31, 2026, 11:59 PM ET. A diplomatic agreement to lower US tariffs on Canada refers to an official agreement, treaty, deal, or substantially similar diplomatic instrument that commits or obligates the United States to lower any tariffs on Canada, or includes the lowering of US tariffs on Canada as part of its stated terms. Any reduction, revocation, or suspension of US tariffs on Canada, or the canceled or suspended implementation of previously announced tariffs not yet effective, mutually announced as part of a diplomatic agreement, will qualify as lowering tariffs. All listed countries must announce their acceptance of the same qualifying diplomatic agreement. A joint announcement will qualify, as will separate announcements from each entity of its own acceptance of an agreement which, taken together, directly indicate that all the listed countries accepted the same agreement. Separate announcements of individual policies will not qualify if the policies are not announced as part of a diplomatic agreement. Each announcement must be a declarative statement that clearly and unambiguously communicates acceptance of an agreement. Statements that reference ongoing negotiations or a prospective agreement, or that allude to or express support for an agreement without confirming acceptance of the agreement, do not qualify. A qualifying announcement need not reference the agreement by name or use specific terminology, provided it clearly communicates acceptance of an agreement. Whether announcements from the listed countries represent a diplomatic agreement and whether such an agreement qualifies will be primarily determined through the announcements themselves. Where an announcement is made by all listed countries but, based on the announcements, it remains ambiguous whether the announcements represent a qualifying diplomatic agreement between the countries or whether the agreement qualifies, this market will remain open until either i) definitive confirmation that the announcements represent a qualifying diplomatic agreement between the listed entities is achieved through further announcements from the listed countries or a consensus of credible reporting or ii) 14 calendar days (ET) have passed after the date that the last country made their first potentially qualifying announcement. If this period would extend past the end date, this market will remain open to allow for 14 full calendar days to pass. If, at the end of the fourteenth calendar day, no definitive confirmation has been achieved, the announcements will be adjudicated based on the totality of information available from the resolution sources at that time. No single statement, denial, or presentation of evidence will govern where it is contradicted by the totality of information. The resolution sources for this market will be official information from the governments of the United States and Canada and a consensus of credible reporting.
US-Canada diplomatic agreement to lower tariffs by September 30?
This market will resolve to “Yes” if a diplomatic agreement between the United States and Canada to lower US tariffs on Canada is announced by September 30, 2026, 11:59 PM ET. A diplomatic agreement to lower US tariffs on Canada refers to an official agreement, treaty, deal, or substantially similar diplomatic instrument that commits or obligates the United States to lower any tariffs on Canada, or includes the lowering of US tariffs on Canada as part of its stated terms. Any reduction, revocation, or suspension of US tariffs on Canada, or the canceled or suspended implementation of previously announced tariffs not yet effective, mutually announced as part of a diplomatic agreement, will qualify as lowering tariffs. All listed countries must announce their acceptance of the same qualifying diplomatic agreement. A joint announcement will qualify, as will separate announcements from each entity of its own acceptance of an agreement which, taken together, directly indicate that all the listed countries accepted the same agreement. Separate announcements of individual policies will not qualify if the policies are not announced as part of a diplomatic agreement. Each announcement must be a declarative statement that clearly and unambiguously communicates acceptance of an agreement. Statements that reference ongoing negotiations or a prospective agreement, or that allude to or express support for an agreement without confirming acceptance of the agreement, do not qualify. A qualifying announcement need not reference the agreement by name or use specific terminology, provided it clearly communicates acceptance of an agreement. Whether announcements from the listed countries represent a diplomatic agreement and whether such an agreement qualifies will be primarily determined through the announcements themselves. Where an announcement is made by all listed countries but, based on the announcements, it remains ambiguous whether the announcements represent a qualifying diplomatic agreement between the countries or whether the agreement qualifies, this market will remain open until either i) definitive confirmation that the announcements represent a qualifying diplomatic agreement between the listed entities is achieved through further announcements from the listed countries or a consensus of credible reporting or ii) 14 calendar days (ET) have passed after the date that the last country made their first potentially qualifying announcement. If this period would extend past the end date, this market will remain open to allow for 14 full calendar days to pass. If, at the end of the fourteenth calendar day, no definitive confirmation has been achieved, the announcements will be adjudicated based on the totality of information available from the resolution sources at that time. No single statement, denial, or presentation of evidence will govern where it is contradicted by the totality of information. The resolution sources for this market will be official information from the governments of the United States and Canada and a consensus of credible reporting.
US-Canada diplomatic agreement to lower tariffs by December 31?
This market will resolve to “Yes” if a diplomatic agreement between the United States and Canada to lower US tariffs on Canada is announced by December 31, 2026, 11:59 PM ET. A diplomatic agreement to lower US tariffs on Canada refers to an official agreement, treaty, deal, or substantially similar diplomatic instrument that commits or obligates the United States to lower any tariffs on Canada, or includes the lowering of US tariffs on Canada as part of its stated terms. Any reduction, revocation, or suspension of US tariffs on Canada, or the cancelled or suspended implementation of previously announced tariffs not yet effective, mutually announced as part of a diplomatic agreement, will qualify as lowering tariffs. All listed countries must announce their acceptance of the same qualifying diplomatic agreement. A joint announcement will qualify, as will separate announcements from each entity of its own acceptance of an agreement which, taken together, directly indicate that all the listed countries accepted the same agreement. Separate announcements of individual policies will not qualify if the policies are not announced as part of a diplomatic agreement. Each announcement must be a declarative statement that clearly and unambiguously communicates acceptance of an agreement. Statements that reference ongoing negotiations or a prospective agreement, or that allude to or express support for an agreement without confirming acceptance of the agreement, do not qualify. A qualifying announcement need not reference the agreement by name or use specific terminology, provided it clearly communicates acceptance of an agreement. Whether announcements from the listed countries represent a diplomatic agreement and whether such an agreement qualifies will be primarily determined through the announcements themselves. Where an announcement is made by all listed countries but, based on the announcements, it remains ambiguous whether the announcements represent a qualifying diplomatic agreement between the countries or whether the agreement qualifies, this market will remain open until either i) definitive confirmation that the announcements represent a qualifying diplomatic agreement between the listed entities is achieved through further announcements from the listed countries or a consensus of credible reporting or ii) 14 calendar days (ET) have passed after the date that the last country made their first potentially qualifying announcement. If this period would extend past the end date, this market will remain open to allow for 14 full calendar days to pass. If, at the end of the fourteenth calendar day, no definitive confirmation has been achieved, the announcements will be adjudicated based on the totality of information available from the resolution sources at that time. No single statement, denial, or presentation of evidence will govern where it is contradicted by the totality of information. The resolution sources for this market will be official information from the governments of the United States and Canada and a consensus of credible reporting.
US-Canada diplomatic agreement to lower tariffs by August 31?
This market will resolve to “Yes” if a diplomatic agreement between the United States and Canada to lower US tariffs on Canada is announced by August 31, 2026, 11:59 PM ET. A diplomatic agreement to lower US tariffs on Canada refers to an official agreement, treaty, deal, or substantially similar diplomatic instrument that commits or obligates the United States to lower any tariffs on Canada, or includes the lowering of US tariffs on Canada as part of its stated terms. Any reduction, revocation, or suspension of US tariffs on Canada, or the cancelled or suspended implementation of previously announced tariffs not yet effective, mutually announced as part of a diplomatic agreement, will qualify as lowering tariffs. All listed countries must announce their acceptance of the same qualifying diplomatic agreement. A joint announcement will qualify, as will separate announcements from each entity of its own acceptance of an agreement which, taken together, directly indicate that all the listed countries accepted the same agreement. Separate announcements of individual policies will not qualify if the policies are not announced as part of a diplomatic agreement. Each announcement must be a declarative statement that clearly and unambiguously communicates acceptance of an agreement. Statements that reference ongoing negotiations or a prospective agreement, or that allude to or express support for an agreement without confirming acceptance of the agreement, do not qualify. A qualifying announcement need not reference the agreement by name or use specific terminology, provided it clearly communicates acceptance of an agreement. Whether announcements from the listed countries represent a diplomatic agreement and whether such an agreement qualifies will be primarily determined through the announcements themselves. Where an announcement is made by all listed countries but, based on the announcements, it remains ambiguous whether the announcements represent a qualifying diplomatic agreement between the countries or whether the agreement qualifies, this market will remain open until either i) definitive confirmation that the announcements represent a qualifying diplomatic agreement between the listed entities is achieved through further announcements from the listed countries or a consensus of credible reporting or ii) 14 calendar days (ET) have passed after the date that the last country made their first potentially qualifying announcement. If this period would extend past the end date, this market will remain open to allow for 14 full calendar days to pass. If, at the end of the fourteenth calendar day, no definitive confirmation has been achieved, the announcements will be adjudicated based on the totality of information available from the resolution sources at that time. No single statement, denial, or presentation of evidence will govern where it is contradicted by the totality of information. The resolution sources for this market will be official information from the governments of the United States and Canada and a consensus of credible reporting.
US-Canada diplomatic agreement to lower tariffs by November 30?
This market will resolve to “Yes” if a diplomatic agreement between the United States and Canada to lower US tariffs on Canada is announced by November 30, 2026, 11:59 PM ET. A diplomatic agreement to lower US tariffs on Canada refers to an official agreement, treaty, deal, or substantially similar diplomatic instrument that commits or obligates the United States to lower any tariffs on Canada, or includes the lowering of US tariffs on Canada as part of its stated terms. Any reduction, revocation, or suspension of US tariffs on Canada, or the canceled or suspended implementation of previously announced tariffs not yet effective, mutually announced as part of a diplomatic agreement, will qualify as lowering tariffs. All listed countries must announce their acceptance of the same qualifying diplomatic agreement. A joint announcement will qualify, as will separate announcements from each entity of its own acceptance of an agreement which, taken together, directly indicate that all the listed countries accepted the same agreement. Separate announcements of individual policies will not qualify if the policies are not announced as part of a diplomatic agreement. Each announcement must be a declarative statement that clearly and unambiguously communicates acceptance of an agreement. Statements that reference ongoing negotiations or a prospective agreement, or that allude to or express support for an agreement without confirming acceptance of the agreement, do not qualify. A qualifying announcement need not reference the agreement by name or use specific terminology, provided it clearly communicates acceptance of an agreement. Whether announcements from the listed countries represent a diplomatic agreement and whether such an agreement qualifies will be primarily determined through the announcements themselves. Where an announcement is made by all listed countries but, based on the announcements, it remains ambiguous whether the announcements represent a qualifying diplomatic agreement between the countries or whether the agreement qualifies, this market will remain open until either i) definitive confirmation that the announcements represent a qualifying diplomatic agreement between the listed entities is achieved through further announcements from the listed countries or a consensus of credible reporting or ii) 14 calendar days (ET) have passed after the date that the last country made their first potentially qualifying announcement. If this period would extend past the end date, this market will remain open to allow for 14 full calendar days to pass. If, at the end of the fourteenth calendar day, no definitive confirmation has been achieved, the announcements will be adjudicated based on the totality of information available from the resolution sources at that time. No single statement, denial, or presentation of evidence will govern where it is contradicted by the totality of information. The resolution sources for this market will be official information from the governments of the United States and Canada and a consensus of credible reporting.
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