If enacted, it would allow companies to use instead a 20- to 30-year corporate bond rate for two years.
But long-term bond rates were under 4.5 percent, or well below current levels.
Italian bond rates are on the way up again.
The bill would allow them to change to a corporate bond rate, which would be higher.
Between jobs and wages, the 30-year bond rate should have moved up by 8 basis points, or nearly one-tenth of a percent.
"If the bond rates go up, then it doesn't become worth doing," she said.
Last June the 10-year bond rate hit a 48-year low.
Although long bond rates dropped to 6.5 percent in early July, he expected them to decline further.
On the other hand, long-term bond rates have come down.
Higher bond rates, in turn, draw investors away from equities.