Subject JYT had participated in a study of arbitrary matching trained by a sample stimulus-control shaping program (Zygmont, Lazar, Dube, & McIlvane, 1992).
Subjects PNO, JYT, and RDP immediately demonstrated emergent arbitrary matching.
Probe results following the partial outcome reversal for PNO, JYT, RDP, and JDB are shown to the right of the vertical lines in Figure 3.
Results with JYT and RDP also showed that emergent matching did not depend upon (a) prior exposure to equivalence-class test procedures and (b) previously established classes that included reinforcing stimuli.
The partial outcome reversal data for PNO, RDP, and JYT replicated the findings of earlier studies: Sample-comparison relations in emergent matching may be determined by the prevailing stimulus-reinforcer relations at the time of testing.
GT launched its $50 million initial public offering on July 24 at $16.50 a share, but the stock tumbled to as low as $9.30 the following day after LDK announced it had signed a major contract with JYT
Corp., GT Solar's competitor.
The day after the July 24 IPO was launched with much fanfare--executives rang the Nasdaq's opening bell in New York's Times Square--LDK Solar Co., a Chinese firm that represented 62 percent of GT Solar's sales in fiscal 2008, announced that it had signed a major contract with a competitor, the China-based JYT Corp.
In a conference call following LDK's last quarterly earnings report of $149.5 million--triple that of a year ago--executives said that despite the contract with JYT, GT Solar was still "a very important supplier."