Fig. 4
From: The gradual evolution of buyer–seller networks and their role in aggregate fluctuations
Standard deviation of each \(y_{t'|t}^{neg}\)s for years 2003 to 2012. The horizontal red line denotes the standard deviation in the year analyzed (i.e., t). a 2003; b 2004; c 2005; d 2006; e 2007; f 2008; g 2009; h 2010; i 2011; j 2012