New Zealand 2 8-K filings; Social media; Twitter; Abnormal returns; Abnormal trading volume 1 AI 1 AI Ethics 1 Accruals 1 Advertising 1 Agents 1 Altruism 1 Artificial intelligence 1 Artworks 1 Australia 1 Australian merger and acquisition 1 Bianca Hester 1 Broadcasting reforms 1 Business finance 1 Capital Markets 1 Case law 1 Charitable donation 1 Collaboration 1 Comedy 1 Communication theory 1 Consumer attitude 1 Consumer behaviour 1 Consumer sentiments 1 Content analysis 1 Corporate environment 1 Crisis social media handling 1 Critical race theory 1 Critical theory 1 Cross sectional Jones model 1