Sharply dropping oil prices and a weakened Canadian energy sector are revealing the limited, ineffectual nature of Stephen Harper's economic policies. Those policies, focused almost exclusively on that one sector, are too narrow. They have rendered Canadians more vulnerable and less resilient. And his government seems out of gas. Unable to cope with adverse economic developments, Mr. Harper is now retreating to a bunker. Instead of reaching out to Canadians to show leadership and build confidence, he has punted the federal budget, normally delivered in February or March, into April or later. That means Canada will go without a budget for more than this entire fiscal year.