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Figure 4 | EPJ Data Science

Figure 4

From: Home is where the ad is: online interest proxies housing demand

Figure 4

Clicks and contacts in the main Italian cities. (A)–(B) Temporal evolution of clicks and contacts in six cities and in the aggregate (solid black line). The time series are strongly cross-correlated and display seasonality. (C) Correlation between clicks and contacts. Each dot is a city in a quarter between 2016Q1 and 2017Q2. The size of dots is proportional to the number of visible ads, cities not shown in panels (A)–(B) are colored grey. The correlation coefficient is 0.64

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