European stocks are expected to open firmer Tuesday as investors head into a busy corporate earnings season amid questions over the stability of economic policies from President Donald Trump.

Those questions put the dollar on the back foot in overnight Asia trading, taking the greenback to a nine-week low against a basket of global currencies and rippled through asset classes around the region. 

The spillover impact will likely boost Britain's FTSE 100 at the opening bell, with financial bookmakers IG anticipating a 21 point gain at the start of European trading and similar, albeit modest, advances for benchmarks in Germany and France.

U.K. investors are also bracing for what could be a crucial decision from the country's Supreme Court at 09:30 GMT, which justices will rule on a High Court verdict from late last year that compels Prime Minister Theresa May to seek parliamentary approval for the triggering of Article 50 of the Lisbon Treaty - otherwise known as the mechanism that will start Britain's two-year exit from the European Union.

The pound, which has largely risen in concert with news that investors perceive as indicating a "softer" Brexit option for the government, was marked at 1.2473 at 07:00 GMT after trading as high as 1.2502 in early Asia dealing. 

The weaker dollar dominated equity market direction in Asia, where the yen rose to a November high of 112.52 against the greenback and led the benchmark Nikkei 225 into a 0.5% decline and its second consecutive session of losses. Australia's S&P/ASX index, however, which is heavily-influenced by basic resource prices that are boosted by a weaker dollar, rose 0.7% into the close to end the day at 5,650.1 points,

Around the region, the MSCI Asia ex-Japan Index was marked 0.34% higher as European traders began to take control at 07:00 GMT.

The dollar's decline also pulled benchmark bond yields markedly lower, with 10-year U.S. Treasuries falling to 2.39% in the sharpest single-day decline in more than two weeks. German 10-year bunds were marked 6 basis points lower 0.36%.

U.S. futures prices are  pointing to a weaker open on Wall Street, as well, following Monday's modest declines, with the Dow Jones Industrial Average called 2.5 points lower at the start of trading. However, both the S&P 500 and the Nasdaq are expected to add marginal gains at the bell, although much will depend on the spate of corporate earnings anticipated later today, including Lockheed Martin (LMT) - Get Report , Johnson & Johnson (JNJ) - Get Report and DuPont (DD) - Get Report