Glossary entry (derived from question below)
English term or phrase:
the wasteful effects of predatory or collusive business behavior
Portuguese translation:
efeitos negativos do comportamento empresarial desleal ou fraudulento
English term
Responsible, trustworthy and accurate
Native in: Portuguese (Variant: European/Portugal) 
, Spanish (Variant: Standard-Spain)
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to Spanish, and 6 more.
the wasteful effects of predatory or collusive business behavior
Proposed translations
Portugal
Translator and Terminologist
Native in: Portuguese
Works in: English to Portuguese, French to Portuguese, Spanish to Portuguese
efeitos negativos do comportamento empresarial desleal ou fraudulento
"Collusion is an agreement between two or more parties, sometimes illegal and therefore secretive, to limit open competition by deceiving, misleading, or defrauding others of their legal rights, or to obtain an objective forbidden by law typically by defrauding or gaining an unfair market advantage.
It can involve "wage fixing, kickbacks, or misrepresenting the Independence..."
https://en.wikipedia.org/wiki/Collusion
pre·da·tó·ri·o
(latim praedatorius, -a, -um, de ladrão)
adjectivo
1. Relativo a predação ou a predador.
"predatório", in Dicionário Priberam da Língua Portuguesa [em linha], 2008-2013, https://www.priberam.pt/dlpo/predatório [consultado em 17-11-2015].
Brazil
IT Specialist • M.A. in Linguistics
Native in: Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English, and 1 more.
os efeitos devastadores do comportamento predatório ou conspiratório nos negócios
United Kingdom
Qualified
Native in: Portuguese 
, English
Works in: English to Portuguese, Portuguese to English, Swedish to Portuguese, and 11 more.
os efeitos não econômicos do comportamento de negócios predatórios ou colusivos
Brazil
Uniting the World through our words
Native in: Portuguese (Variant: Brazilian)
Works in: French to Portuguese, English to Portuguese, Spanish to Portuguese, and 1 more.
os efeitos do desperdício de um comportamento predatório ou de um conluio de negócios
Portugal
Maria Teresa Borges de Almeida 
30+ years translating EU documents
Native in: Portuguese (Variant: European/Portugal)
Works in: English to Portuguese, French to Portuguese, Spanish to Portuguese, and 1 more.
os efeitos ruinosos das práticas colusivas e predatórias
A título de exemplo, era impraticável a realização de buscas e a apreensão de documentos nas empresas, constatando-se ser uma forte limitação no combate às práticas colusivas e predatórias.
https://repositorio-aberto.up.pt/bitstream/10216/66542/2/157...
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