比DID更加靈活的DDID政策效應評估方法

計量經濟圈，歡迎學習定量分析的圈友，進入我們的大社羣，進入裏面以後能夠找到Stata 15 MP版本，前天發送的那個令你們滿意的軟件。

今天給圈友推薦一個比DID更加靈活的DDID命令，這對於處理政策效應更加彈性，畢竟它容許這個放進來的政策虛擬變量出現lags或forwards。在面板數據中，一個個體在不一樣時間點能夠是處理組或對照組，過去的政策影響如今或未來可能的政策影響如今，這樣固然就比DID靈活不少。

GIOVANNI CERULLI is a researcher at the CNR-IRCrES, Research Institute on Sustainable Economic Growth, National Research Council of Italy, Unit of Rome.

寫在後面：各位圈友，我們的計量經濟圈社羣裏面資料和計量諮詢都不少，但願你們可以積極加入我們這個你們庭（戳這裏）。以後咱們會逐步邀請社羣裏的圈友再直接創建微信羣與圈圈對話，進去以後必定要看「羣公告」，否則接收不了羣信息。

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I was born in 1973. I took a degree in Statistics and Economics at Sapienza University of Rome in 1998, and a PhD in Economics at the same university in 2003. Given my statistical background, I am interested in analyses based on econometric and statistical tools. My research interest is in 「applied economics and econometrics」, with a special focus on both the theoretical and applied "econometrics of program evaluation", and on the "economics of R&D and innovation」. I developed some original models for quantitative program evaluation, such as models for continuous treatment, neighborhood interaction, as well as nonparametric extensions of previous models. In applications, my research activity focuses mainly on measuring quantitatively the effects of technological policies on firm economic and technological performance.

My contribution within the econometrics of program evaluation is also computational, as I performed several Stata routines for implementing some program evaluation techniques.

My second related research area is on agent-based simulation models. Indeed, I have been working on the role played by (bounded) rationality and coordination in modeling economic behaviors since my degree thesis. Part of my two-year post-doc experience at the IUAV (University of Venice) touched strongly on the (problematic) relation between mathematics and economics modeling. From a theoretical perspective, I am sympathetic with evolutionary theorizing, although I make use of what I feel to be compelling also in mainstream theory. I am also interested in economic methodology.

According to RePEc (Research Papers in Economics) archive, I am among the top 5% authors according to these criteria:

Number of Abstract Views in RePEc Services over the past 12 months

Number of Downloads through RePEc Services over the past 12 months

Number of Abstract Views in RePEc Services over the past 12 months, Weighted by Number of Authors

Number of Downloads through RePEc Services over the past 12 months, Weighted by Number of Authors

I am Editor-in-Chief of the International Journal of Computational Economics and Econometrics.

I am Associate Editor of the World Review of Science, Technology and Sustainable Development.

I am coordinator of GRAPE - Research Group on the Analysis of Economic Policies.

I am author of the book: Econometric Evaluation of Socio-Economic Programs: Theory and Applications.

Last but not least, 「social economics」 is another other field of inquiry I worked on. In my PhD thesis, in fact, I built a Social Accounting Matrix for the Italian welfare-mix system and performed simulations to see what a role an emerging non-profit sector can play.

I deem economics to be a social science, where the term 「social」 deals primarily with our moral responsibility toward mankind and our planet.

My research topics:

Applied econometrics Econometrics of program evaluation Economics of R&D and Innovation Agent-based simulation Industrial organization Economic methodology Social economics