Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2793613481', 'doi': None, 'title': 'Price-change Relation between Stock Index and Stock Index Features Market for the Nikkei 225', 'display_name': 'Price-change Relation between Stock Index and Stock Index Features Market for the Nikkei 225', 'publication_year': 1997, 'publication_date': '1997-07-01', 'ids': {'openalex': 'https://openalex.org/W2793613481', 'mag': '2793613481'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'http://ci.nii.ac.jp/naid/110006258984', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306556758', 'display_name': '経済論究', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310313373', 'host_organization_name': 'Kyushu University', 'host_organization_lineage': ['https://openalex.org/P4310313373'], 'host_organization_lineage_names': ['Kyushu University'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': [], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5000785678', 'display_name': 'Hiroshi Moriyasu', 'orcid': 'https://orcid.org/0000-0001-8173-2761'}, 'institutions': [], 'countries': [], 'is_corresponding': True, 'raw_author_name': 'H. Moriyasu', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': ['https://openalex.org/A5000785678'], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 0, 'citation_normalized_percentile': {'value': 0.0, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 0, 'max': 55}, 'biblio': {'volume': '98', 'issue': None, 'first_page': '171', 'last_page': '181'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11326', 'display_name': 'Predicting Stock Market Trends and Movements', 'score': 0.5158, 'subfield': {'id': 'https://openalex.org/subfields/1803', 'display_name': 'Management Science and Operations Research'}, 'field': {'id': 'https://openalex.org/fields/18', 'display_name': 'Decision Sciences'}, 'domain': {'id': 'https://openalex.org/domains/2', 'display_name': 'Social Sciences'}}, 'topics': [{'id': 'https://openalex.org/T11326', 'display_name': 'Predicting Stock Market Trends and Movements', 'score': 0.5158, 'subfield': {'id': 'https://openalex.org/subfields/1803', 'display_name': 'Management Science and Operations Research'}, 'field': {'id': 'https://openalex.org/fields/18', 'display_name': 'Decision Sciences'}, 'domain': {'id': 'https://openalex.org/domains/2', 'display_name': 'Social Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/stock-market-prediction', 'display_name': 'Stock Market Prediction', 'score': 0.557687}, {'id': 'https://openalex.org/keywords/capitalization-weighted-index', 'display_name': 'Capitalization-weighted index', 'score': 0.5487484}, {'id': 'https://openalex.org/keywords/stock', 'display_name': 'Stock (firearms)', 'score': 0.5075902}], 'concepts': [{'id': 'https://openalex.org/C2777382242', 'wikidata': 'https://www.wikidata.org/wiki/Q6017816', 'display_name': 'Index (typography)', 'level': 2, 'score': 0.7123989}, {'id': 'https://openalex.org/C88389905', 'wikidata': 'https://www.wikidata.org/wiki/Q223371', 'display_name': 'Stock market index', 'level': 4, 'score': 0.59051335}, {'id': 'https://openalex.org/C192737826', 'wikidata': 'https://www.wikidata.org/wiki/Q5035802', 'display_name': 'Capitalization-weighted index', 'level': 5, 'score': 0.5487484}, {'id': 'https://openalex.org/C2780299701', 'wikidata': 'https://www.wikidata.org/wiki/Q475000', 'display_name': 'Stock market', 'level': 3, 'score': 0.51413256}, {'id': 'https://openalex.org/C204036174', 'wikidata': 'https://www.wikidata.org/wiki/Q909380', 'display_name': 'Stock (firearms)', 'level': 2, 'score': 0.5075902}, {'id': 'https://openalex.org/C25343380', 'wikidata': 'https://www.wikidata.org/wiki/Q277521', 'display_name': 'Relation (database)', 'level': 2, 'score': 0.41101345}, {'id': 'https://openalex.org/C149782125', 'wikidata': 'https://www.wikidata.org/wiki/Q160039', 'display_name': 'Econometrics', 'level': 1, 'score': 0.3787694}, {'id': 'https://openalex.org/C162324750', 'wikidata': 'https://www.wikidata.org/wiki/Q8134', 'display_name': 'Economics', 'level': 0, 'score': 0.3261851}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.1865997}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.14221165}, {'id': 'https://openalex.org/C124101348', 'wikidata': 'https://www.wikidata.org/wiki/Q172491', 'display_name': 'Data mining', 'level': 1, 'score': 0.110331744}, {'id': 'https://openalex.org/C205649164', 'wikidata': 'https://www.wikidata.org/wiki/Q1071', 'display_name': 'Geography', 'level': 0, 'score': 0.07364488}, {'id': 'https://openalex.org/C2779343474', 'wikidata': 'https://www.wikidata.org/wiki/Q3109175', 'display_name': 'Context (archaeology)', 'level': 2, 'score': 0.07116768}, {'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C166957645', 'wikidata': 'https://www.wikidata.org/wiki/Q23498', 'display_name': 'Archaeology', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C136764020', 'wikidata': 'https://www.wikidata.org/wiki/Q466', 'display_name': 'World Wide Web', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'http://ci.nii.ac.jp/naid/110006258984', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306556758', 'display_name': '経済論究', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310313373', 'host_organization_name': 'Kyushu University', 'host_organization_lineage': ['https://openalex.org/P4310313373'], 'host_organization_lineage_names': ['Kyushu University'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W3123252458', 'https://openalex.org/W3123212027', 'https://openalex.org/W3106560492', 'https://openalex.org/W3044701251', 'https://openalex.org/W3009106034', 'https://openalex.org/W2950151318', 'https://openalex.org/W2947905778', 'https://openalex.org/W2771607542', 'https://openalex.org/W2638726908', 'https://openalex.org/W2586635549', 'https://openalex.org/W2461921695', 'https://openalex.org/W2435596057', 'https://openalex.org/W2357559819', 'https://openalex.org/W2349704844', 'https://openalex.org/W2340565224', 'https://openalex.org/W2322284847', 'https://openalex.org/W2266915561', 'https://openalex.org/W2031051364', 'https://openalex.org/W1981628874', 'https://openalex.org/W1525877260'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2793613481', 'counts_by_year': [], 'updated_date': '2024-09-17T00:49:28.050808', 'created_date': '2018-03-29'}