The issuance of interest-free credit by a government-controlled and fully owned central bank. Such interest-free but repayable loans could be used for public infrastructure and productive private investment. This proposal seeks to avoid debt-free money causing inflation.
Banks typically make loans to customers by crediting new demand deposits to the account of the customer. This practice, which is known as fractional reserve banking, permits the total supply of credit to exceed the liquid legal reserves of the bank. The amount of this excess is expressed as the "reserve ratio" and is limited by government regulators not to exceed a level which they deem adequate to ensure the ability of banks to meet their payment obligations. Under this system, which is currently practiced throughout the world, the money supply varies with the quantity of legal reserves and the amount of credit issuance by banks.
However, some critics of fractional reserve banking argue that the practice inherently artificially lowers real interest rates and leads to business cycles propagated by excessive capital investment and subsequent contraction. A small number of critics, such as Michael Rowbotham, equate the practice to counterfeiting, because banks are granted the legal right to issue new loans while charging interest on the money thus created. Rowbotham argues that this concentrates wealth in the banking sector with various pernicious effects. 
Some critics discuss the fact that governments pay interest for the use of money which the central bank creates "out of nothing". These critics claim that this system causes economic activity to depend on the actions of privately owned banks, which are motivated by self-interest rather than by any explicit social purpose or obligation.
International organizations and developing nations
Some monetary reformers criticise existing global financial institutions like the World Bank, International Monetary Fund, Bank of International Settlements and their policies regarding money supply, banks and debt in developing nations, in that they appear to these writers to be "forcing" a regime of extortionate or unpayable debt on weak Third World governments that do not have the capacity to pay the interest on these loans without severely affecting the well-being or even the viability of the local population. The attempt by weak Third World governments to service external debt with the sale of valuable hard and soft commodities on world markets is seen by some to be destructive of local cultures, destroying local communities and their environment.
However, given that these policies do not address the more fundamental issues inherent in fractional reserve banking, many suggest that only more radical monetary reform can promote positive economic or social change. Although central banks may appear to control inflation, through periodic bank rescues and other means, they may inadvertently be forced to increase the money supply (and thereby debase the currency) to save the banking system from bankruptcy or collapse during periodic bank runs, thereby inducing moral hazard in the financial system, making the system susceptible to economic bubbles.
Alternatively, some monetary reformers such as those in the Social Credit movement, support the issuance of repayable interest-free credit from a government-owned central bank to fund infrastructure and sustainable social projects. This Social Credit movement flourished briefly in the early 20th century, but then became marginalized and died out in the post-World War II era.
Both these groups (those who advocate the replacement of fractional-reserve banking with debt-free government-issued fiat, and those who support the issuance of repayable interest-free credit from a government-owned central bank) see the provision of interest-free money as a way of freeing the working populace from the bonds of "debt slavery" and facilitating a transformation of the economy away from environmentally damaging consumerism and towards sustainable economic policies and environment-friendly business practices.
Examples of government issued debt-free money
Some governments have experimented in the past with debt-free government-created money independent of a bank. The American Colonies used the "Colonial Scrip" system prior to the Revolution, much to the praise of Benjamin Franklin. He believed it was the efforts of English bankers to revoke this government-issued money that caused the Revolution.Abraham Lincoln used interest-free money created by the government to help the Union win the American Civil War. He called these 'Greenbacks' "the greatest blessing the people of this republic ever had."
Some proponents of monetary reform desire a move away from fiat money towards a hard currency or asset-backed currency, which is often argued to be an antidote to inflation. This may involve using commodity money such as money backed by the gold, silver or both, commodities which supporters argue possess unique properties: their extraordinary malleability, their strong resistance to forgery, their character as stable and impervious to decay, and their inherently limited supply.
Some monetary reformers favour permitting competing banks to issue private banknotes whilst also eliminating the central bank's role lender of last resort. In the absence of these factors, they believe a gold standard or silver standard would arise spontaneously out of the free market.