In the second Yugoslav state the commerce between the republics was – inprinciple as well according to the constitution – free and could not be limitedby the laws of individual republics. However, in practice trade between the republicswas quite limited. That was not only due to their autarkic tendencies,but also due to the problems of defi ning and enacting the concept of a singleYugoslav market, which was – except in the economically political sense – acompletely indeterminable category.In the centrally-planned economic system Slovenia had to trade with the Yugoslavrepublics, which represented a large market. For a long time certain Sloveniancompanies could place their products and services, for which there wasno demand in external, convertible markets or signifi cantly lower prices wereoffered for them, at the »southern markets«. With fi nancially benefi cial transactions– that is, purchase of cheap raw materials and sale of signifi cantly moreexpensive intermediate and fi nished goods and services – Slovenian companieswere able to ensure profi ts. Slovenia invested a part of these resources into furtherdevelopment and improvement of living standard, while a signifi cant partreturned to federal funds and funds of other, especially less-developed republics,in the form of various taxes and contributions. Because it knew how to takeadvantage of its economic development and qualifi cations of its trade personnel,in the years under consideration the structure of its exchange of goods with theother republics was constantly benefi cial. Therefore the fl ows of goods betweenthe republics functioned as a catalyst of the swifter Slovenian economic developmentand growth of its net social product.However, with the exception of potatoes, Slovenia had a defi cit of basic agriculturalcommodities and products. It mostly covered its demand for wheat,livestock or meat, fats, fruit and vegetables, as well as various seeds with importsfrom other parts of Yugoslavia. The amounts in the individual years dependedon the harvest. Slovenian producers sold their production surpluses inthe other republics. In terms of quantity as well as value of exchange, industrialproducts and consumer commodities stood out.The information collected about the exchange between the republics showsthat already in the 1970s almost 70 percent of all exchange of goods was carriedout within individual republics. In the following decade the percentage of purchasesoutside of the borders of individual republics decreased further. As far asSlovenia was concerned, around 90 percent of its exchange between republicstook place with Croatia, narrower Serbia as well as Bosnia and Herzegovina. Inthe second half of the 1980s the increasingly limited exchange of goods and servicesbetween the republics was accompanied especially by fi scal and parafi scalcash fl ows. These were inconvenient for Slovenia, which had a high surplus ofoutfl ow in comparison to infl ow from social product. Slovenia’s economic contactswith Serbia started severing in 1989, and with the other republics after the»Ten-Day War« of June 1991.