A bilateral agreement is an agreement between two parties, in which each party undertakes to respect its part of the agreement. Several prosperous countries have already negotiated bilateral agreements with Covid 19 vaccine sponsors to guarantee vaccines to their citizens. In those circumstances, most courts would consider that the act of commencement of the performance transforms a unilateral treaty into a bilateral treaty obliging both parties to fulfil the obligations laid down in the treaty. However, other jurisdictions would analyze the facts of each case so as not to thwart the reasonable expectations of the parties. In none of these cases are the legal rights of the parties ultimately determined by the courts through the application of the concepts of unilateral and bilateral treaties. With many governments currently in bilateral negotiations with manufacturers to guarantee the necessary doses before we even know if the vaccine will be successful, we are now at a critical juncture. Each sales contract is an example of a bilateral contract. A car buyer may agree to pay the seller a certain amount of money in exchange for ownership of the car. The seller undertakes to provide the title of the vehicle against the amount of sale indicated. If one of the parties does not conclude the end of the agreement, there has been an infringement. By taking a purely bilateral “I first” approach, not only do these governments risk running out of vaccines at all, but they also expose their citizens to the risk of resurgence by letting the majority of the world go without it.
Reciprocity of engagement must consist of an enforceable bilateral treaty, and that implies the notion of reciprocity. A cannot keep B`s promise unless A`s promise is accompanied by a legal disadvantage and B can only keep A`s promise if B`s promise causes legal prejudice. In this sense, virtually all of our routine daily transactions are bilateral treaties, sometimes with a signed agreement and often without one. An agreement formed by the exchange of a promise in which the promise of one party is a quid pro quo that supports the promise of the other party.. . .