plus, inside silicon oasis.y approves president trump's tax overhaul, but wall street takes a breather from its month—long rally.

plus, inside silicon oasis.ow the emirates are cultivating high—technology to support a post—oil economy. and on the markets, a bit of an anticlimax — congress finally approves president trump's tax overhaul, but wall street takes a breather from its month—long rally. we start in the spanish region of catalonia where voters are going to the polls today to pick a new parliament. the elections were called after october's referendum which saw a vote in favour of independence — plunging the country into a constitutional crisis. and with the separatist and pro—unity sides neck—and—neck, that crisis looks set to continue. catalonia is barely more than 6% of spain's territory. but it accounts for around a fifth of the spanish economy, and almost a quarter of exports, as well as 16% of the population. last week the bank of spain cut its national economic growth forecast for next year from 2.5% to 2.4%, citing the uncertainty around catalonia as one of the main reasons. businesses aren't waiting to find out the impact. m