diff --git a/main.pdf b/main.pdf
index fb11a8e..800d2be 100644
Binary files a/main.pdf and b/main.pdf differ
diff --git a/main.tex b/main.tex
index 67e6930..61779b7 100644
--- a/main.tex
+++ b/main.tex
@@ -98,6 +98,27 @@ The goal of this whitepaper is to present such an entity --- Agorata.
 
 
 \section{Decision-making algorithm}
+In this chapter, the strategy for making decisions will be described.
+
+\textbf{Deal representation}
+
+A deal proposal is made by the user in the form of a smart contract. A smart contract is considered as an entity with which other entities (users, smart contracts) can interact via messages\footnote{The message concept used here is from The Open Network (TON). A message can include tokens, commands, information, code.}.
+For a state of the contract we can determine the messages that can be sent to the contract and for each of them --- the response messages and the next state. The deal is represented as a tree with states as leafs and actions (messages) as edges. Depending on the actions, the deal has a total outcome --- the number of tokens that were gained/spent by the agent.
+
+\textbf{Agent parameters}
+\begin{enumerate}
+  \item $T_{0}$ is the maximum deal time --- i.e., the horizon after which the benefits of the deal are not considered
+  \item $\tau$ is the charachteristic time of discount --- e.g., $\exp({\frac{1\,year}{\tau}}) - 1$ is the minimal yearly rate for a loan
+\end{enumerate}
+
+Given these parameters, the value function $V((x_{i}), (t_{i}))$ can be determined. It takes the sequence of values $(x_{i}, t_{i})$, where $x_{i}$ are the incoming/outcoming tokens from the agent.
+
+\textbf{Deal evaluation}
+
+The agent considers the worst case of the deal from the perspective of game theory: the best (from the perspective of the value function) actions of the agent and the ``worst'' actions of the counteragents.
+This sequence of events is the run through the value function in order to make a decision.
+
+
 
 \section{Contract evaluation algorithm}