The biopharmaceutical industry is experiencing a surge of collaborations among large and small companies seeking to develop new drug candidates. Often, such efforts have been a result of a merger or acquisition. But other factors also are pushing the rise in collaborations, including dwindling drug pipelines, increasing generics and biosimilars, rising costs of drug development, and changing regulations that are already complex. High costs of drug development in particular have created greater risks. That is especially true for small biotechnology…