The SADF test finds the largest ADF statistic from all the windows considered. If this value exceeds a critical value, the null hypothesis can be rejected, and it is deemed the series displays explosive behaviour in at least one of the windows (taken as indication of a bubble occurring).
— Meanwhile, Rover, the pet care site sometimes referred to along with its competitor Wag as the Uber of dog walking, has retained Mercury Public Affairs as its first outside lobbying firm. Mercury’s Mike McSherry, an alum of the RNC, Republican Governors’ Association and Labor Department, will lobby for Rover on tax and labor classification issues — a development that comes as the Biden administration has pledged to recognize workers dispatched by apps as employees rather than contractors. Gig companies are also facing new tax reporting requirements beginning next year, thanks to the coronavirus stimulus bill signed into law by President Joe Biden in March.

The village split in two by climate change. VideoThe village split in two by climate change
China announced in September that all cryptocurrency transactions in the country are illegal, effectively putting the brakes on any crypto-related activities within Chinese borders. In the U.S., things are less clear. Federal Reserve Chair Jerome Powell said recently that he has “no intention” of banning cryptocurrency in the U.S while Security and Exchange Commission Chairman Gary Gensler has consistently commented on both his own agency’s and the Commodity Futures Trading Commission’s role in policing the industry.