An escalation of tension between Russia and Ukraine augurs bad for both. The two countries are going through throes of deplorable financial crisis and the diplomatic flareup will only worsen the already dismal situation. The hostilities have badly hit their economies and it is in the interest of both that the conflict is not allowed to intensify further. The …

  Hillary Clinton thinks corporate taxes are too low. Donald Trump thinks corporate taxes are way too high. They’re both wrong, and the economic consequences could be huge if either nominee’s tax proposal becomes law. Trump would slash the rate to 15 percent and allow millions of partnerships and single-owner firms set up by hedge fund managers, lawyers and other …

  Megan McArdle Since I last wrote about it, Aetna’s withdrawal from the Obamacare exchanges has ginned up even more drama. Jeff Young and Jonathan Cohn of the Huffington Post published a letter in which Aetna told the Justice Department that it would reduce its exchange participation unless Justice allowed the merger with Humana to go through. This has naturally …