JAMES B. STEWART

A study by the Federal Trade Commission found that concerns about every vertical merger examined by the commission from 2006 to 2012 were resolved through 'conduct remedies' rather than divestitures, and that all these remedies had been successful at protecting competition.

Divestitures have long been the preferred remedy for horizontal mergers, where there's an overlap between the two companies. Airlines, for example, may have to sell routes or airport gates where the two airlines compete; cable operators may have to sell operations in cities where both companies operate.

Mr. Trump had no political or military experience, the traditional routes to high political office. Virtually his only qualification was his business career, and a checkered one at that, considering his own brush with personal bankruptcy.

Most European countries fund their low corporate taxes with some form of a value-added tax, on consumption rather than income.

Like or loathe Donald J. Trump, you have to give him this: He's done more to shine a spotlight on the loopholes and fundamental unfairness of the tax code than any other American president.

For every Tesla or Uber, there's a Valeant Pharmaceuticals or Theranos - two story stocks that seduced an astounding array of prominent investors and supporters based on stories that did turn out to be too good to be true.

The A.M.T. is a parallel system for calculating tax liability intended to ensure that high-income taxpayers pay a substantial amount in federal tax even if they have large deductions or other items to offset income.

The bar for a chief executive of a public corporation to repudiate a United States president is extraordinarily high. Corporate leaders aren't given their power, prestige, responsibility, and nine-figure pay packages to use the corner office as their personal soapbox.

As a global disrupter, Uber is no stranger to conflict, and its instinct has always been pugilistic.

The rationale for eliminating the alternative minimum tax is that such a backup system should not be necessary if the tax code is fundamentally fair and eliminates all the loopholes that made it possible for high-income taxpayers to escape taxation in the first place.

The biggest revenue target is the preferential rate for long-term capital gains, which raises a perennial question: Why should capital income be taxed at a much lower rate than ordinary income? Capital assets are owned overwhelmingly by the rich.

Low-volatility funds, which tend to smooth out performance, have been especially popular since the financial crisis. The PowerShares S&P 500 Low Volatility Fund is the oldest, begun in 2011.

A large and growing body of academic research suggests there are market anomalies that can be exploited to beat a strict index approach. Some of that research has been recognized with Nobels in economic science - William F. Sharpe in 1990 and Eugene F. Fama in 2013.

If Republicans are correct that lower rates spur economic growth, then lower rates on all income - made possible in part by raising capital-gains rates - should bolster economic growth across the economy.

Seattle was hardly a tech magnet before Amazon, Microsoft, and then a host of once-fledgling technology firms set up operations there.

The idea that content is king has long rested on the notion that distribution - in whatever form it takes - is a low-margin commodity, and the biggest share of profits flows to the creators of original programming, who can sell to the highest bidder.

Early investors in Uber and Airbnb, though they remain private companies, have valued them at stratospheric multiples based largely on the notion that Uber will transform and dominate local transportation and Airbnb will revolutionize the hotel industry.

Mr. Trump has said he strongly supports immediate expensing of capital expenditures, which many economists agree would encourage growth.

The A.M.T. is much reviled by tax experts across the political spectrum for its unintended consequences and fiendish complexity.

Amazon and Snap both have stories that are compelling for many investors: Amazon has transformed retailing and is destined to dominate it. Snap is reinventing communication, at least for millennials and those even younger.

From what little is known of Mr. Trump's tax returns, he used losses to offset virtually all of his taxable income for years by generating something called net operating loss carry-overs.

Almost everyone agrees that corporate tax rates need to be cut because of global competition. Companies should not be able to stash earnings overseas tax-free.

While there continue to be critics of the Comcast-NBC merger, it's hard to argue that competition in news and entertainment has diminished as a result, given the rise of Netflix and Amazon and the explosion in entertainment options that followed the merger.

Advocates of a tax overhaul often point to the 1986 act as a model for a comprehensive approach that ushered in a long period of economic growth.

The real estate lobby has prominent allies in both parties. After the last major overhaul of the tax code, in 1986 - under a Republican president, Ronald Reagan, a Republican Senate and a Democratic House - it was a Democrat, Bill Clinton, who signed legislation that restored lost real estate tax breaks seven years later.