If you rely on Bandura as a source, there is no such thing as a general form of self-efficacy.  He stresses the importance of defining self-efficacy items and domains as narrow as possible. (E.g., "Can you stay in a room with a snake?" is a classic example There is also a couple of studies of the literature that shows the more general the domain, the less predictive it is. 

Thank you Dr. William Lucas  for your answer. I agree with Bandura, but not completely! 

Do you know who says otherwise?  who accept "defining self-efficacy items and domains as wide as possible!" 

I agree with Dr Lucas. However general self-efficacy is a concept related to the ability to cope with adversity in an adaptive way (i.e. an optimistic self-concept). In my understanding it is partially distinct from Bandura's task-specific self-efficacy and it represents a subject's appraisal of her own resilience. I would not advise to use it alone to predict behavior change outcomes. Schwartzer did a lot of work on general self-efficacy.

Just to concur that there is a literature on General Self-efficacy that correlates with Self-esteem and a number of other general psychology traits. My bias is showing because while these traits are sometimes interesting and have some predictive power for other general psychological states, they have little value when studying specific behaviors. 

The Bandura approach and/or Ajzen's Perceived Behavioral Control (specifically its Internal Control component) together offer something like 18,000 articles involving a vast array of different and very specific subject areas.  Bandura's own work tends to assume that the behavior involved is desirable (an easy assumption when so much of it is over-coming psychological problems), and a more complete model is found in the Social Cognitive Career Theory found in the career development literature.

I find the literature on Entrepreneurial Intention Model (e.g. in the Entrepreneurship Theory and Practice, or  Journal of Business Venturing) to be particularly interesting because it involves a 20 year evolution of a causal model where Bandua's and Ajzen's construct are used in competing studies.

A couple of people have tried to used one of the General Self-efficacy scales for the study of entrepreneurship, with some success.  But the problem is that in the context of the a entrepreneurship classroom, it seems likely that the questions are interpreted by the students as specific to the entrepreneurship domain.

Thank you Dr. Lucas!