The American oil and gas industry has experienced serious productivity declines in the past several years. If the industry is to reverse this trend, companies such as Chevron and ConocoPhillips, in addition to the government, must take an active role in improving productivity. All the following represent ways to improve productivity except _______. a. increased government regulation b. change in government policies that hinder productivity c. participative management d. improved relations between union and management e. changing work incentives