is prevailing on vs is prevailing to

Some examples from the web:

• provides credit on the basis of an annual percentage rate of charge which is lower than that prevailing on the market or subject to a ceiling laid down by national law,
• This is prevailing all over the world.
• Ideology is prevailing over economic thought in this chamber today, ECR leader Jan Zahradil said.
• The Chinese Communist Party is prevailing.
• This shows that prices on the Community potash market are influenced by the demand prevailing on other markets.
• The framework of reference has always been the conditions prevailing on the actual markets concerned [34].
• Foreign currency transactions are translated at the exchange rate prevailing on the date of the transaction.
• It is estimated that the CAP causes prices to be at least 23% higher than those prevailing on the world market.
• This negative effect on the sales price prevailing on the Union market lasted during the whole IP.
• According to the plan, restructuring should increase prices by 30 % (to the level prevailing on the market) and generate additional revenue of USD 100 million.
• The suspect has routinely mocked the law, prevailing on juries' sympathies to free underprivileged criminals.
• Madam President, ladies and gentlemen, please forgive me, but I am going to have to destroy the wonderful unanimity which is prevailing in this Chamber.
• One point: I hope that science is prevailing over emotion in relation to the transportation of animals.
• On the basis of empirical research, the report ascertained the premiums prevailing on the market for various categories of risks relating to undertakings and transactions (backed by variable security).
• having regard to the rigorous competition currently prevailing on Europe's roads,
• Conducive to the freedom of expression and communication prevailing on the Internet are the relatively low costs of Internet access, including broadband connections, which provide increasingly fast access to multimedia content.
• Public acceptance was dependent on the Member States having the right to limit the free movement of labour in line with the conditions prevailing on their own labour markets.
• Liabilities denominated in foreign currencies shall be converted into the national currency at the representative market exchange rate prevailing on the last working day of each year.
• In the ESA, the stocks of fixed assets are valued at the market prices prevailing on the data of the balance sheet.
• When drawing up rural development programmes, Member States shall have the necessary flexibility to adapt Community priorities in order to tailor them to the particular conditions prevailing on their territory.

Some examples from the web:

• The prevailing trend is to act as though we had reached the end of history, or in other words as though the world were peaceful and could be ruled by means of an ever greater number of directives.
• There is a prevailing morality to our world... and it instructs us thus... find another, build a home, raise a family... the avoidance of these instructions will result in all manner of perdition.
• This is prevailing all over the world.
• Ideology is prevailing over economic thought in this chamber today, ECR leader Jan Zahradil said.
• The Chinese Communist Party is prevailing.
• Madam President, ladies and gentlemen, please forgive me, but I am going to have to destroy the wonderful unanimity which is prevailing in this Chamber.
• One point: I hope that science is prevailing over emotion in relation to the transportation of animals.
• Consequently, it is pleasing and I think we all could and should welcome the fact that this discipline is prevailing in the operation of the mechanism in question.
• This is a very, very important question, and I am pleased at the political unity which is prevailing.
• The banana issue reveals that the interests of multinational firms are a thousand times more important than the development of nations; the market is prevailing over the solidarity that needs to be developed within a political community.
• At a time when the European Union is now managing to play a major political role, we will be responsible not only for hardship and failure, but also, in political terms, for a region in which peace is prevailing.
• The absence of state structures is leading to an increasingly anarchic situation where the logic of armed force is prevailing, notably in connection with the illegal exploitation of natural resources as well as in terms of exploiting the local population.
• The book is an outright indictment of the prevailing press restraint in Romania.
• Hence, the swaps were conducted under the prevailing economic conditions on the market.
• Under the then prevailing circumstances, financial institutions in Greece had difficulties in accessing funding.
• prevailing selling prices to other export markets,
• One prevailing myth is that cancer is primarily a developed-country problem.
• This entails abandoning the prevailing dogma that taxes should only be increased when absolutely necessary.
• It must take a position and combat the prevailing ambiguity.
• As always the prevailing wind has its background colored.