Rising inflationary pressures are dragging stocks and bonds, which may prompt the Fed to hike interest rates earlier than expected, an expert said.
Although this test successfully detects single isolated bubbles, Phillips, Shi, and Yu [24] acknowledge it may suffer from reduced discriminatory power when applied to time series with multiple occurrences of bubbles. To overcome this weakness, a further enhancement was proposed, as a new method, called a generalized supremum ADF (GSADF) test. This test allows both the start and end points of data subsets to vary, which in turn enables the identification of multiple bubble regimes in one observed time series. The GSADF test is defined by

On the downside, the zone between $67,000 and $63,750 is likely to act as a strong support. If this zone is breached, it will indicate that traders may be aggressively booking profits. The pair may then drop to the 50-day simple moving average (SMA) ($56,348).
Funding: This work was supported by the Engineering and Physical Sciences Research Council (EPSRC). The funding was received by Ross Phillips (RP) via the DTC in Financial Computing & Analytics; reference number: EP/L015129/1; http://gow.epsrc.ac.uk/NGBOViewGrant.aspx?GrantRef=EP/L015129/1. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.