The document discusses different types of economic activities and enterprises that can generate income, ranging from individuals selling goods on sidewalks to large corporations employing 51+ people. It also describes informal savings schemes commonly used in developing areas, such as ROSCAs and ASCAs. These involve groups of people saving together and taking turns receiving payouts. The document advises that NGOs and missionaries considering microfinance programs should research existing community savings schemes and decide whether to promote, provide, or partner with these schemes. It identifies some ways that microenterprise development can be incorrectly implemented, such as through unsuitable loans or subsidized credit.