action portfoliooptimizer_post_portfolio_simulation_rebalancing_drift_weight {
  label: "Drift-weight Portfolio Rebalancing"
  description: "Simulate the evolution of one or several portfolio(s) over one or several time period(s), the portfolio(s) being never rebalanced (a.k.a. buy and hold).\n\nReferences\n* [Hillion, Pierre, The Ex-Ante Rebalancing Premium (March 11, 2016). INSEAD Working Paper No. 2016/15/FIN](https://ssrn.com/abstract=2746471)\n"
  provider: portfoliooptimizer
  method: POST
  path: "/portfolio/simulation/rebalancing/drift-weight"
  encoding: json
  input: {
    type: "object"
    required: ["assets", "portfolios"]
    properties: {
      assets: {
        type: "array"
        items: {
          type: "object"
          required: ["assetPrices"]
          properties: {
            assetPrices: {
              type: "array"
              description: "assetPrices[t] is the price of the asset at the time t"
              items: {
                type: "number"
              }
            }
          }
        }
      }
      portfolios: {
        type: "array"
        items: {
          type: "object"
          required: ["assetsWeights"]
          properties: {
            assetsWeights: {
              type: "array"
              description: "assetsWeights[i] is the weight of the asset i in the portfolio, in percentage"
              items: {
                type: "number"
              }
            }
          }
        }
      }
    }
  }
  output: {
    type: "object"
    required: ["portfolios"]
    properties: {
      portfolios: {
        type: "array"
        items: {
          type: "object"
          required: ["portfolioValues"]
          properties: {
            portfolioValues: {
              type: "array"
              description: "portfolioValues[t] is the value of the portfolio at the time t"
              items: {
                type: "number"
              }
            }
          }
        }
      }
    }
  }
}