Migration has landed many countries with illegal immigrant labor problems. This research based argument assigns labor two categories: subsistence labor---a human right without choice, and labor above the subsistence level with choice. This book is concerned with that part of work each human being has to perform in order to survive. This means work effort directed towards making sufficient income to pay for basic needs such as food, shelter, and clothing, including such other things necessary for survival in a given society. Labor supply data analysis in Appendix III confirms that human beings...