The U.S. Supreme Court is set to deliver a ruling today on the legality of tariffs imposed during the Trump administration. A decision against the tariffs could lead to substantial refunds, impacting cash flows over time. White House economic advisor Kevin Hassett indicated alternative measures are available if the government loses the case. Additionally, the U.S. will release key economic indicators, including November's retail sales and Producer Price Index (PPI) data. Retail sales are forecasted to rise by 0.4%, while the PPI annual rate is expected at 2.7%. Federal Reserve officials, including Governor Mullan and Presidents Narayana Kocherlakota and Patrick Harker, are scheduled to speak on the economic outlook today.